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