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15 Cards in this Set
- Front
- Back
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1. Metals valued in
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Precious metals
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2. Any metal that resists corrosion and tarnishing?
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Noble Metals
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3. The appearance of a material’s surface in reflected light?
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Luster
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4. Gold, Platinum and Silver share the qualities of?
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Allure, Workability, Durability, and Rarity
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5. Precious metal’s physical allure is a combination of?
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Color, Luster, Heft
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6. The weight or heaviest of an object compared to its size?
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Heft
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jewelry, specifically gold, platinum, and silver?
7. Ability to be stretched in all directions without breaking? |
Malleable
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8. Capable of being fashioned into, and retaining, a new shape?
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Ductile
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9. A metal’s ability to withstand wear, heat, and chemicals?
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Durability
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10. Deterioration by a chemical action?
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Corrosion
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11. Surface discoloration caused by contact with sulfur-rich substances, including air_________ is a mild form of corrosion?
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Tarnish
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12. Non-precious metals such as copper, zinc, tin, nickel, lead, and iron?
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Base Metals
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13. Mixture of two or more metals?
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Thousand
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14. Sometimes, metal content is stated in parts per ______________, based on weight?
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Fine
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15. Free of impurities or alloying metals?
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Fineness
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