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15 Cards in this Set

  • Front
  • Back
1. Metals valued in
Precious metals
2. Any metal that resists corrosion and tarnishing?
Noble Metals
3. The appearance of a material’s surface in reflected light?
Luster
4. Gold, Platinum and Silver share the qualities of?
Allure, Workability, Durability, and Rarity
5. Precious metal’s physical allure is a combination of?
Color, Luster, Heft
6. The weight or heaviest of an object compared to its size?
Heft
jewelry, specifically gold, platinum, and silver?





7. Ability to be stretched in all directions without breaking?
Malleable
8. Capable of being fashioned into, and retaining, a new shape?
Ductile
9. A metal’s ability to withstand wear, heat, and chemicals?
Durability
10. Deterioration by a chemical action?
Corrosion
11. Surface discoloration caused by contact with sulfur-rich substances, including air_________ is a mild form of corrosion?
Tarnish
12. Non-precious metals such as copper, zinc, tin, nickel, lead, and iron?
Base Metals
13. Mixture of two or more metals?
Thousand
14. Sometimes, metal content is stated in parts per ______________, based on weight?
Fine
15. Free of impurities or alloying metals?
Fineness