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