AY Honors/Lapidary/Answer Key - Revision history

W126jep: Marked this version for translation

2021-04-28T14:17:20Z

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W126jep at 14:17, 28 April 2021

2021-04-28T14:17:10Z

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2021-03-19T02:52:18Z

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2020-12-20T15:06:00Z

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Jomegat bot: Jomegat bot moved page Adventist Youth Honors Answer Book/Arts and Crafts/Lapidary to AY Honors/Lapidary/Answer Key: Bot: Moved page

2020-12-19T03:24:52Z

Jomegat bot moved page AY Honor Lapidary to AY Honor Lapidary Answer Key: Bot: Moved page

W126jep: Marked this version for translation

2015-01-29T17:58:50Z

Marked this version for translation

Jomegat: Remove T: tags

2015-01-28T23:12:58Z

Remove T: tags

W126jep: Marked this version for translation

2015-01-08T17:07:48Z

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W126jep: + translate tags

2015-01-08T17:06:31Z

+ translate tags

Jomegat at 01:38, 30 November 2014

2014-11-30T01:38:53Z

@@ Line 2: / Line 2: @@
 <section begin="Body" />
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=1}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:11-->
 <!-- 1. Name four safety precautions to be taken when sawing rocks. -->
 # Wear eye protection (safety goggles).
@@ Line 12: / Line 13: @@
 # Rock saws must be plugged in to a Ground Fault Circuit Interrupter (GFCI) outlet. These circuits continually monitor the current flowing in and the current flowing out. The only way that these can be unequal is if the current has found another path to ground, such as through a person. When this condition is detected, the circuit is interrupted and the person is not electrocuted. High fives all around!
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 1 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=2}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:13-->
 <!-- 2. Name two types of diamond saw lubricating and cooling solutions and their purpose. -->
 In rock cutting, several fluids have been used as lubricating and cooling solutions, including:
@@ Line 30: / Line 33: @@
 * Cool the blade so that is does not lose its tempering. If a blade gets too hot, it will undergo a change in its hardness and brittleness. This damages the blade.
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 2 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=3}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:15-->
 <!-- 3. Explain how a diamond saw cuts rocks, how it gets dull, and how it can be sharpened. -->
 A diamond saw consists of a thin body coated with a ''matrix'' around its edges. Diamond particles are embedded within this matrix. As the saw rotates, the hard diamonds come into contact with the material being cut and grind it off. The lubricant washes away the tiny chunks dislodged by the diamonds. Over time, the diamonds can break off the saw so that only the matrix is left on the cutting surface of the blade (or a significant portion thereof). When this happens, the blade can be sharpened by using it to cut through a brick. This action will wear the matrix down exposing more diamonds embedded deeper within.
@@ Line 41: / Line 46: @@
 The rim of the blade is wider than the disc of the blade. This is by design so that the blade cuts a slot that is wider than the disc, thus preventing the sides of the disc from coming into contact with the material being cut. If it were to come into contact, the blade would bind up, and both blade and rock would heat up. When the rim gets worn down and is no longer wider than the disc, it can be restored by lightly tapping all around the rim of the blade with a ball peen hammer to flare the rim out again. Care should be taken to strike the edges straight on so that the rim remains perpendicular to the plane of the disc.
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 3 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=4}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:17-->
 <!-- 4. Describe the five basic steps to follow in bringing a slab or a flat surface to a polish. -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 4 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=5}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:18-->
 <!-- 5. What important precaution should be taken between each stage of grinding and sanding? -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 5 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=6}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:19-->
 <!-- 6. What is a template, and how is it used? -->
 A template is a flat piece of material with holes cut in it, similar to a stencil. The template is placed on a slab, and the slab is then marked along the inside edge of the selected hole in the template.
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 6 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=7}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:21-->
 <!-- 7. What is a cabochon, and what is the usual thickness of the slab from which it is made? -->
 A cabochon is a gemstone which has been shaped and polished as opposed to faceted. The resulting form is usually a convex top with a flat bottom. Cutting "en cabochon" is usually applied to opaque gems, while faceting is usually applied to transparent stones. Hardness is also taken into account as softer gemstones with a hardness lower than 7 on the Moh's hardness scale are easily scratched, mainly by silicon dioxide in dust and grit. This would quickly make translucent gems unattractive. Instead they are polished as cabochons, making the scratches less evident.
@@ Line 73: / Line 84: @@
 Cabochons are usually cut from slabs ranging from one to three eighths of an inch thick (3 to 10 mm).
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 7 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=8}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:23-->
 <!-- 8. How do you decide the best angle or position to slab a specimen? -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 8 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=9}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:24-->
 <!-- 9. Explain two methods of wet sanding while shaping and polishing the rock. -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 9 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=10}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:25-->
 <!-- 10. From what material are polishing compounds made? If a scratch appears while polishing, how is it removed? -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 10 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=11}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:26-->
 <!-- 11. Saw, trim, properly dop, and carry a cabochon through the necessary grinding, sanding, and polishing stages to a high gloss or glassy finish. -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 11 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=12}}
-<noinclude><translate></noinclude>
+<noinclude><translate><!--T:27-->
 <!-- 12. Mount the cabochon on some type of backing, such as a stick pin, sweater pin, key ring, etc., with cement. -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 12 -->
 <noinclude><translate></noinclude>
-==References==
+==References== <!--T:28-->
 *http://www.inlandcraft.com/howto/cabbing/cabbing.htm
 *http://www.inlandlapidary.com/user_area/howtocab.asp

@@ Line 3: / Line 3: @@
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=1}}
 <noinclude><translate></noinclude>
-<!-- 1. Name four safety precautions to be taken when sawing rocks.  -->
+<!-- 1. Name four safety precautions to be taken when sawing rocks. -->
 # Wear eye protection (safety goggles).
 # Do not wear loose clothing or accessories (watches, jewelry, etc.) that can get caught in a machine.
-# Never use cutting tools dry.  They must be continually lubricated when in use.
+# Never use cutting tools dry. They must be continually lubricated when in use.
 # Read all instructions and safety precautions before operating equipment.
 # Operate the equipment up on a sturdy, level surface.
-# Do not remove any safety guards or shields from the saw.  They are there for a reason.
+# Do not remove any safety guards or shields from the saw. They are there for a reason.
-# Rock saws must be plugged in to a Ground Fault Circuit Interrupter (GFCI) outlet.  These circuits continually monitor the current flowing in and the current flowing out.  The only way that these can be unequal is if the current has found another path to ground, such as through a person.  When this condition is detected, the circuit is interrupted and the person is not electrocuted.  High fives all around!
+# Rock saws must be plugged in to a Ground Fault Circuit Interrupter (GFCI) outlet. These circuits continually monitor the current flowing in and the current flowing out. The only way that these can be unequal is if the current has found another path to ground, such as through a person. When this condition is detected, the circuit is interrupted and the person is not electrocuted. High fives all around!
 <noinclude></translate></noinclude>
@@ Line 16: / Line 16: @@
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=2}}
 <noinclude><translate></noinclude>
-<!-- 2. Name two types of diamond saw lubricating and cooling solutions and their purpose.  -->
+<!-- 2. Name two types of diamond saw lubricating and cooling solutions and their purpose. -->
 In rock cutting, several fluids have been used as lubricating and cooling solutions, including:
-;Water: Water provides almost no lubrication and will cause the blade to rust.  It is not recommended.
+;Water: Water provides almost no lubrication and will cause the blade to rust. It is not recommended.
-;Kerosene: Kerosene is flammable and does little to inhibit rust.  Further, it is smelly and somewhat toxic (care should be taken to avoid skin contact).
+;Kerosene: Kerosene is flammable and does little to inhibit rust. Further, it is smelly and somewhat toxic (care should be taken to avoid skin contact).
 ;Diesel: Diesel has much the same properties as kerosene.
-;Vegetable oil: Vegetable oils are not as flammable as diesel and kerosene, but they are still flammable.  They also oxidize and thicken when cold.  However, they do a fair job of lubricating and cooling, are not toxic, and have low odor.
+;Vegetable oil: Vegetable oils are not as flammable as diesel and kerosene, but they are still flammable. They also oxidize and thicken when cold. However, they do a fair job of lubricating and cooling, are not toxic, and have low odor.
-;Mineral oil: These include Texaco's ''Almag'' and Chevron's ''Superla #5''.  Mineral oils have low flammability, are not toxic, and have low odor.  They are also more stable than vegetable oils.
+;Mineral oil: These include Texaco's ''Almag'' and Chevron's ''Superla #5''. Mineral oils have low flammability, are not toxic, and have low odor. They are also more stable than vegetable oils.
 <!--T:3-->
 The purpose of lubricating and cooling solutions is twofold:
-* Remove the "sawdust" from the cut (this is essentially lubrication).  The lubricant washes the cut material out of the slot.
+* Remove the "sawdust" from the cut (this is essentially lubrication). The lubricant washes the cut material out of the slot.
-* Cool the blade so that is does not lose its tempering.  If a blade gets too hot, it will undergo a change in its hardness and brittleness.  This damages the blade.
+* Cool the blade so that is does not lose its tempering. If a blade gets too hot, it will undergo a change in its hardness and brittleness. This damages the blade.
 <noinclude></translate></noinclude>
@@ Line 34: / Line 34: @@
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=3}}
 <noinclude><translate></noinclude>
-<!-- 3. Explain how a diamond saw cuts rocks, how it gets dull, and how it can be sharpened.  -->
+<!-- 3. Explain how a diamond saw cuts rocks, how it gets dull, and how it can be sharpened. -->
-A diamond saw consists of a thin body coated with a ''matrix'' around its edges.  Diamond particles are embedded within this matrix.  As the saw rotates, the hard diamonds come into contact with the material being cut and grind it off.  The lubricant washes away the tiny chunks dislodged by the diamonds.  Over time, the diamonds can break off the saw so that only the matrix is left on the cutting surface of the blade (or a significant portion thereof).  When this happens, the blade can be sharpened by using it to cut through a brick.  This action will wear the matrix down exposing more diamonds embedded deeper within.
+A diamond saw consists of a thin body coated with a ''matrix'' around its edges. Diamond particles are embedded within this matrix. As the saw rotates, the hard diamonds come into contact with the material being cut and grind it off. The lubricant washes away the tiny chunks dislodged by the diamonds. Over time, the diamonds can break off the saw so that only the matrix is left on the cutting surface of the blade (or a significant portion thereof). When this happens, the blade can be sharpened by using it to cut through a brick. This action will wear the matrix down exposing more diamonds embedded deeper within.
 <!--T:5-->
-The rim of the blade is wider than the disc of the blade.  This is by design so that the blade cuts a slot that is wider than the disc, thus preventing the sides of the disc from coming into contact with the material being cut.  If it were to come into contact, the blade would bind up, and both blade and rock would heat up.  When the rim gets worn down and is no longer wider than the disc, it can be restored by lightly tapping all around the rim of the blade with a ball peen hammer to flare the rim out again.  Care should be taken to strike the edges straight on so that the rim remains perpendicular to the plane of the disc.
+The rim of the blade is wider than the disc of the blade. This is by design so that the blade cuts a slot that is wider than the disc, thus preventing the sides of the disc from coming into contact with the material being cut. If it were to come into contact, the blade would bind up, and both blade and rock would heat up. When the rim gets worn down and is no longer wider than the disc, it can be restored by lightly tapping all around the rim of the blade with a ball peen hammer to flare the rim out again. Care should be taken to strike the edges straight on so that the rim remains perpendicular to the plane of the disc.
 <noinclude></translate></noinclude>
@@ Line 45: / Line 45: @@
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=4}}
 <noinclude><translate></noinclude>
-<!-- 4. Describe the five basic steps to follow in bringing a slab or a flat surface to a polish.  -->
+<!-- 4. Describe the five basic steps to follow in bringing a slab or a flat surface to a polish. -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 4 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=5}}
 <noinclude><translate></noinclude>
-<!-- 5. What important precaution should be taken between each stage of grinding and sanding?  -->
+<!-- 5. What important precaution should be taken between each stage of grinding and sanding? -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 5 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=6}}
 <noinclude><translate></noinclude>
-<!-- 6. What is a template, and how is it used?  -->
+<!-- 6. What is a template, and how is it used? -->
-A template is a flat piece of material with holes cut in it, similar to a stencil.  The template is placed on a slab, and the slab is then marked along the inside edge of the selected hole in the template.
+A template is a flat piece of material with holes cut in it, similar to a stencil. The template is placed on a slab, and the slab is then marked along the inside edge of the selected hole in the template.
 <noinclude></translate></noinclude>
@@ Line 62: / Line 62: @@
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=7}}
 <noinclude><translate></noinclude>
-<!-- 7. What is a cabochon, and what is the usual thickness of the slab from which it is made?  -->
+<!-- 7. What is a cabochon, and what is the usual thickness of the slab from which it is made? -->
 A cabochon is a gemstone which has been shaped and polished as opposed to faceted. The resulting form is usually a convex top with a flat bottom. Cutting "en cabochon" is usually applied to opaque gems, while faceting is usually applied to transparent stones. Hardness is also taken into account as softer gemstones with a hardness lower than 7 on the Moh's hardness scale are easily scratched, mainly by silicon dioxide in dust and grit. This would quickly make translucent gems unattractive. Instead they are polished as cabochons, making the scratches less evident.
@@ Line 77: / Line 77: @@
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=8}}
 <noinclude><translate></noinclude>
-<!-- 8. How do you decide the best angle or position to slab a specimen?  -->
+<!-- 8. How do you decide the best angle or position to slab a specimen? -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 8 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=9}}
 <noinclude><translate></noinclude>
-<!-- 9. Explain two methods of wet sanding while shaping and polishing the rock.  -->
+<!-- 9. Explain two methods of wet sanding while shaping and polishing the rock. -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 9 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=10}}
 <noinclude><translate></noinclude>
-<!-- 10. From what material are polishing compounds made? If a scratch appears while polishing, how is it removed?  -->
+<!-- 10. From what material are polishing compounds made? If a scratch appears while polishing, how is it removed? -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 10 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=11}}
 <noinclude><translate></noinclude>
-<!-- 11. Saw, trim, properly dop, and carry a cabochon through the necessary grinding, sanding, and polishing stages to a high gloss or glassy finish.  -->
+<!-- 11. Saw, trim, properly dop, and carry a cabochon through the necessary grinding, sanding, and polishing stages to a high gloss or glassy finish. -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 11 -->
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=12}}
 <noinclude><translate></noinclude>
-<!-- 12. Mount the cabochon on some type of backing, such as a stick pin, sweater pin, key ring, etc., with cement.  -->
+<!-- 12. Mount the cabochon on some type of backing, such as a stick pin, sweater pin, key ring, etc., with cement. -->
 <noinclude></translate></noinclude>
 {{CloseReq}} <!-- 12 -->

@@ Line 1: / Line 1: @@
-<languages /><br />
+{{HonorSubpage}}
 <section begin="Body" />
 {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=1}}
@@ Line 119: / Line 107: @@
 <noinclude></translate></noinclude>
 [[Category:Adventist Youth Honors Answer Book|{{SUBPAGENAME}}]]
-<section end="Body" />
+{{CloseHonorPage}}

@@ Line 10: / Line 10: @@
 |insignia=Lapidary_Honor.png
 }}
-==1. Name four safety precautions to be taken when sawing rocks. ==  <!--T:1-->
 # Wear eye protection (safety goggles).
 # Do not wear loose clothing or accessories (watches, jewelry, etc.) that can get caught in a machine.
@@ Line 19: / Line 24: @@
 # Rock saws must be plugged in to a Ground Fault Circuit Interrupter (GFCI) outlet.  These circuits continually monitor the current flowing in and the current flowing out.  The only way that these can be unequal is if the current has found another path to ground, such as through a person.  When this condition is detected, the circuit is interrupted and the person is not electrocuted.  High fives all around!
-==2. Name two types of diamond saw lubricating and cooling solutions and their purpose. ==  <!--T:2-->
+<noinclude></translate></noinclude>
 In rock cutting, several fluids have been used as lubricating and cooling solutions, including:
 ;Water: Water provides almost no lubrication and will cause the blade to rust.  It is not recommended.
@@ Line 33: / Line 42: @@
 * Cool the blade so that is does not lose its tempering.  If a blade gets too hot, it will undergo a change in its hardness and brittleness.  This damages the blade.
-==3. Explain how a diamond saw cuts rocks, how it gets dull, and how it can be sharpened. ==  <!--T:4-->
+<noinclude></translate></noinclude>
 A diamond saw consists of a thin body coated with a ''matrix'' around its edges.  Diamond particles are embedded within this matrix.  As the saw rotates, the hard diamonds come into contact with the material being cut and grind it off.  The lubricant washes away the tiny chunks dislodged by the diamonds.  Over time, the diamonds can break off the saw so that only the matrix is left on the cutting surface of the blade (or a significant portion thereof).  When this happens, the blade can be sharpened by using it to cut through a brick.  This action will wear the matrix down exposing more diamonds embedded deeper within.
@@ Line 40: / Line 53: @@
 The rim of the blade is wider than the disc of the blade.  This is by design so that the blade cuts a slot that is wider than the disc, thus preventing the sides of the disc from coming into contact with the material being cut.  If it were to come into contact, the blade would bind up, and both blade and rock would heat up.  When the rim gets worn down and is no longer wider than the disc, it can be restored by lightly tapping all around the rim of the blade with a ball peen hammer to flare the rim out again.  Care should be taken to strike the edges straight on so that the rim remains perpendicular to the plane of the disc.
-==4. Describe the five basic steps to follow in bringing a slab or a flat surface to a polish. ==  <!--T:6-->
+<noinclude></translate></noinclude>
-==5. What important precaution should be taken between each stage of grinding and sanding? ==
+{{CloseReq}} <!-- 3 -->
-==6. What is a template, and how is it used? ==
+{{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=4}}
 A template is a flat piece of material with holes cut in it, similar to a stencil.  The template is placed on a slab, and the slab is then marked along the inside edge of the selected hole in the template.
-==7. What is a cabochon, and what is the usual thickness of the slab from which it is made? ==  <!--T:7-->
+<noinclude></translate></noinclude>
 A cabochon is a gemstone which has been shaped and polished as opposed to faceted. The resulting form is usually a convex top with a flat bottom. Cutting "en cabochon" is usually applied to opaque gems, while faceting is usually applied to transparent stones. Hardness is also taken into account as softer gemstones with a hardness lower than 7 on the Moh's hardness scale are easily scratched, mainly by silicon dioxide in dust and grit. This would quickly make translucent gems unattractive. Instead they are polished as cabochons, making the scratches less evident.
@@ Line 56: / Line 85: @@
 Cabochons are usually cut from slabs ranging from one to three eighths of an inch thick (3 to 10 mm).
-==8. How do you decide the best angle or position to slab a specimen? ==  <!--T:10-->
+<noinclude></translate></noinclude>
-==9. Explain two methods of wet sanding while shaping and polishing the rock. ==
+{{CloseReq}} <!-- 7 -->
-==10. From what material are polishing compounds made? If a scratch appears while polishing, how is it removed? ==
+{{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=8}}
-==11. Saw, trim, properly dop, and carry a cabochon through the necessary grinding, sanding, and polishing stages to a high gloss or glassy finish. ==
+<noinclude><translate></noinclude>
-==12. Mount the cabochon on some type of backing, such as a stick pin, sweater pin, key ring, etc., with cement. ==
+<!-- 8. How do you decide the best angle or position to slab a specimen?  -->
 ==References==
 *http://www.inlandcraft.com/howto/cabbing/cabbing.htm
@@ Line 67: / Line 119: @@
 <noinclude></translate></noinclude>
 [[Category:Adventist Youth Honors Answer Book|{{SUBPAGENAME}}]]

@@ Line 10: / Line 10: @@
 |insignia=Lapidary_Honor.png
 }}
-==1. Name four safety precautions to be taken when sawing rocks. ==
+==1. Name four safety precautions to be taken when sawing rocks. ==  <!--T:1-->
 # Wear eye protection (safety goggles).
 # Do not wear loose clothing or accessories (watches, jewelry, etc.) that can get caught in a machine.
@@ Line 19: / Line 19: @@
 # Rock saws must be plugged in to a Ground Fault Circuit Interrupter (GFCI) outlet.  These circuits continually monitor the current flowing in and the current flowing out.  The only way that these can be unequal is if the current has found another path to ground, such as through a person.  When this condition is detected, the circuit is interrupted and the person is not electrocuted.  High fives all around!
-==2. Name two types of diamond saw lubricating and cooling solutions and their purpose. ==
+==2. Name two types of diamond saw lubricating and cooling solutions and their purpose. ==  <!--T:2-->
 In rock cutting, several fluids have been used as lubricating and cooling solutions, including:
 ;Water: Water provides almost no lubrication and will cause the blade to rust.  It is not recommended.
@@ Line 28: / Line 28: @@
 The purpose of lubricating and cooling solutions is twofold:
 * Remove the "sawdust" from the cut (this is essentially lubrication).  The lubricant washes the cut material out of the slot.
 * Cool the blade so that is does not lose its tempering.  If a blade gets too hot, it will undergo a change in its hardness and brittleness.  This damages the blade.
-==3. Explain how a diamond saw cuts rocks, how it gets dull, and how it can be sharpened. ==
+==3. Explain how a diamond saw cuts rocks, how it gets dull, and how it can be sharpened. ==  <!--T:4-->
 A diamond saw consists of a thin body coated with a ''matrix'' around its edges.  Diamond particles are embedded within this matrix.  As the saw rotates, the hard diamonds come into contact with the material being cut and grind it off.  The lubricant washes away the tiny chunks dislodged by the diamonds.  Over time, the diamonds can break off the saw so that only the matrix is left on the cutting surface of the blade (or a significant portion thereof).  When this happens, the blade can be sharpened by using it to cut through a brick.  This action will wear the matrix down exposing more diamonds embedded deeper within.
 The rim of the blade is wider than the disc of the blade.  This is by design so that the blade cuts a slot that is wider than the disc, thus preventing the sides of the disc from coming into contact with the material being cut.  If it were to come into contact, the blade would bind up, and both blade and rock would heat up.  When the rim gets worn down and is no longer wider than the disc, it can be restored by lightly tapping all around the rim of the blade with a ball peen hammer to flare the rim out again.  Care should be taken to strike the edges straight on so that the rim remains perpendicular to the plane of the disc.
-==4. Describe the five basic steps to follow in bringing a slab or a flat surface to a polish. ==
+==4. Describe the five basic steps to follow in bringing a slab or a flat surface to a polish. ==  <!--T:6-->
 ==5. What important precaution should be taken between each stage of grinding and sanding? ==
 ==6. What is a template, and how is it used? ==
 A template is a flat piece of material with holes cut in it, similar to a stencil.  The template is placed on a slab, and the slab is then marked along the inside edge of the selected hole in the template.
-==7. What is a cabochon, and what is the usual thickness of the slab from which it is made? ==
+==7. What is a cabochon, and what is the usual thickness of the slab from which it is made? ==  <!--T:7-->
 A cabochon is a gemstone which has been shaped and polished as opposed to faceted. The resulting form is usually a convex top with a flat bottom. Cutting "en cabochon" is usually applied to opaque gems, while faceting is usually applied to transparent stones. Hardness is also taken into account as softer gemstones with a hardness lower than 7 on the Moh's hardness scale are easily scratched, mainly by silicon dioxide in dust and grit. This would quickly make translucent gems unattractive. Instead they are polished as cabochons, making the scratches less evident.
 The one notable exception to this is the case of asteriated stones such as star sapphires and chatoyant stones such as cat's eye chrysoberyl, where a domed cabochon cut is used to show the star or eye, which would not be seen in a faceted cut.
 Cabochons are usually cut from slabs ranging from one to three eighths of an inch thick (3 to 10 mm).
-==8. How do you decide the best angle or position to slab a specimen? ==
+==8. How do you decide the best angle or position to slab a specimen? ==  <!--T:10-->
 ==9. Explain two methods of wet sanding while shaping and polishing the rock. ==
 ==10. From what material are polishing compounds made? If a scratch appears while polishing, how is it removed? ==

← Older revision	Revision as of 03:24, 19 December 2020
(No difference)

@@ Line 5: / Line 5: @@
 |year=1967
 |category=Arts and Crafts
-|authority=North American Division
+|authority=General Conference
 |insignia=Lapidary_Honor.png
 }}

AY Honors/Lapidary/Answer Key - Revision history

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