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- 1. Multiple Choice
The diagrams below show the crystal shapes of two minerals. Quartz and halite have different crystal shapes primarily because...
light reflects from crystal surfaces
energy is released during crystallization
of impurities in their colors
of the internal arrangement of the atoms
- 2. Multiple ChoiceThe way in which a mineral's surface reflects light.CleavageFractureDensityLuster
- 3. Multiple ChoiceA mineral's resistance to being scratched is called?streaklusterhardnessheft
- 4. Multiple Choice
The color of a mineral's powder is called its
density.
fracture.
hardness.
streak.
- 5. Multiple Choice
Breakage along rough or jagged edges is called...
cleavage
fracture
streak
luster
- 6. Multiple Choice
Breakage along Flat sides, Clear Defined shapes, and Even Edges is called...
cleavage
fracture
streak
luster
- 7. Multiple Choice
Which mineral is mined for its iron content?
Hematite
Galena
Fluorite
Talc
- 8. Multiple Choice
Which element makes up the greatest percentage by volume in the Earth's Crust?
Silicon
Oxygen
Aluminum
Potassium
- 9. Multiple Choice
Which minerals contain the two most abundant elements by mass in Earth’s crust?
fluorite and calcite
magnetite and pyrite
galena and sulfur
amphibole and quartz
- 10. Multiple Choice
Which mineral can scratch A, B, and C, but cannot scratch D?
Talc
Dolomite
Quartz
Selenite Gypsum
- 11. Multiple Choice
The diagram shows a test for which mineral property?
Hardness
Luster
Cleavage
Streak
- 12. Multiple Choice
The mineral in the above table that will scratch garnet is —
pyrite
garnet
magnetite
topaz
- 13. Multiple Choice
Which two minerals are commercial sources of iron?
galena and graphite
muscovite mica and biotite mica
garnet and flourite
hematite and magnetite
- 14. Multiple Choice
Which mineral is commonly mined as a source of the element lead (Pb)?
galena
quartz
magnetite
gypsum
- 15. Multiple Choice
Which mineral has a metallic luster, a black streak, and is an ore of iron?
Galena
Magnetite
Pyroxene
Graphite
- 16. Multiple Choice
The table below shows the hardness of four common materials. Which statement best describes the hardness of the mineral dolomite?
Dolomite can scratch window glass, but can not be scratched by a fingernail.
Dolomite can scratch window glass, but can not be scratched by a steel nail.
Dolomite can scratch a copper penny, but cannot be scratched by a fingernail.
Dolomite can scratch a copper penny, but cannot be scratched by a steel nail.
- 17. Multiple Choice
Base your answers to question on the photograph below. The photograph shows several broken samples of the same colorless mineral. Which mineral is most likely shown in the photograph?
quartz
magnetite
galena
halite
- 18. Multiple Choice
The mineral anorthite is typically white to gray in color, has a hardness of 6.0, cleaves in two directions, and is used in making glass and ceramics. Which mineral has properties most similar to anorthite?
quartz
calcite
pyroxene
plagioclase feldspar
- 19. Multiple Choice
Which mineral scratches fluorite & galena, but is scratched by quartz?
Talc
Halite
Hematite
Sulfur
- 20. Multiple Choice
Which mineral property was examined in TEST C?
Streak
Breakage
Hardness
Luster
- 21. Multiple Choice
Which two physical properties of graphite make it a good mineral for use in pencils?
luster and fracture
cleavage and color
hardness and streak
greasy feel and composition
- 22. Multiple Choice
Which of the following elements is not found in Plagioclase Feldspar?
Na
Al
Si
Pb
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