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Quiz 15 (Moh's Hardness Scale)
  • 1. The _________________________________ is what is used to determine how durable minerals are.
A) Doh's Hardness Scale
B) Moh's Durable Scale
C) Doh's Durable Scale
D) Moh's Hardness Scale
E) Moh's Mineral Scale
  • 2. The hardest known mineral is the ___________________________________.
A) Quartz
B) Olivine
C) Diamond
D) Corundum
E) Calcite
  • 3. According to the ESRT's "Properties of Common Minerals," a mineral with a hardness of 5.5 can break another mineral with a hardness of ___________________________.
A) 6.0 or below
B) 5.6 or below
C) 10 or below
D) 5.5 or below
E) 7.0 or below
  • 4. Diamonds have two common types of use: __________________________ and ________________________.
A) cosmetic, industrial
B) conductive, industrial
C) concurrent, industrial
D) commercial, instrumental
E) current, instrumental
  • 5. According to the ESRT's Properties of Common Minerals, Graphite (Grafito) has a hardness of
A) 1-5
B) 1-4
C) 2-4
D) 1-2
E) 2-3
  • 6. Calcite (Calcita) is composed of Calcium and ______________________.
A) Fe (1 iron)
B) Cl (1 Chlorine)
C) CO (1 Carbon, 1 Oxygen)
D) CO3 (1 Carbon, 3 Oxygen)
E) CCl3 (1 Carbon, 3 Chlorine)
  • 7. Sulfur (Azufre) can easily break __________________________.
A) Potassium Feldspar
B) Talc
C) Quartz
D) Garnet
E) Muscovite Mica
  • 8. The most important use for Sulfur is as _____________________________.
A) Sulfuric Acid (H2SO4)
B) Sulfuric Jewelry
C) Sulfuric Ceramics
D) Sulfuric Drywall
E) Sulfuric Lubricants
  • 9. Magnetite can break Galena, Graphite, and Magnetite but not _______________________________.
A) Plagioclase Feldspar (Feldespato Plagioclasa)
B) Dolomite (Dolomita)
C) Sulfur (Azufre)
D) Halite (Halita)
E) Quartz (Cuarzo)
  • 10. The best mineral to use for pencil lead and lubricants is _________________________.
A) Pyrite
B) Magnetite
C) Halite
D) Graphite
E) Galena
  • 11. The only difference between Graphite and a Diamond is that...
A) Diamonds and Graphites both have a hardness of 10
B) Graphites are only found in America
C) Diamonds are only found in Russia
D) Graphites and Diamonds are exactly the same
E) Diamonds are highly pressurized and heated Carbon
  • 12. (Fe, Mg)2 SI04 is the composition of ________________________________.
A) Quartz
B) Dolomite
C) Muscovite Mica
D) Amphibole
E) Olivine
  • 13. Pyroxene is usually a _______________________ color.
A) black to silver
B) colorless to white
C) brassy yellow
D) black to dark green
E) white to pink or gray
  • 14. Talc is best used for...
A) paint, roofing
B) ceramics, paper
C) ore of sulfur
D) ore of iron
E) sulfuric acid
  • 15. Many jewelry experts, watchmakers particularly, believe the best material for watches to maintain time perfectly is...
A) Halite
B) Calcite
C) Selenite Gypsum
D) Muscovite Mica
E) Quartz
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