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Latest revision as of 18:01, 21 July 2022
Skill Level
2
Year
1967
Version
18.12.2024
Approval authority
General Conference
1. Name four safety precautions to be taken when sawing rocks.
2. Name two types of diamond saw lubricating and cooling solutions and their purpose.
3. Explain how a diamond saw cuts rocks, how it gets dull, and how it can be sharpened.
4. Describe the five basic steps to follow in bringing a slab or a flat surface to a polish.
5. What important precaution should be taken between each stage of grinding and sanding?
6. What is a template, and how is it used?
7. What is a cabochon, and what is the usual thickness of the slab from which it is made?
8. How do you decide the best angle or position to slab a specimen?
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?
11. Saw, trim, properly dop, and carry a cabochon through the necessary grinding, sanding, and polishing stages to a high gloss or glassy finish.
12. Mount the cabochon on some type of backing, such as a stick pin, sweater pin, key ring, etc., with cement.
