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1
Which of the following is not a characteristic of all minerals?
A. ShinyB. Naturally occurringC. Consistent chemical compositionD. Crystal structureE. Inorganic
2
Why is coal not considered a mineral?A. Not naturally occurringB. Too softC. OrganicD. Not shinyE. Not dense enough
3
Why is brass not a mineral?A. It is a man-made alloyB. It is too denseC. It has metallic lusterD. It doesn’t leave a streakE. It doesn’t glow under UV light
4
Why is obsidian not a mineral?A. It has lusterB. It is too hardC. It doesn’t leave a streakD. It doesn’t have a crystal structureE. It was formed by lava crystallizing
5
What mineral property is most likely being tested with the following tools?
A. HardnessB. StreakC. Specific gravityD. LusterE. Cleavage
6
What mineral property is being tested?A. HardnessB. StreakC. FluorescenceD. Specific gravityE. Luster
7
What mineral property is being tested?A. HardnessB. StreakC. Specific gravityD. LusterE. Cleavage
8
What mineral property is being tested?A. FluorescenceB. StreakC. Specific gravityD. LusterE. Effervescence
9
This mineral scratches a penny but cannot scratch glass.
A. CalciteB. FluoriteC. QuartzD. OrthoclaseE. Talc
10
This mineral scratches gypsum but is scratched by orthoclase.
A. TalcB. TopazC. Quartz D. CorundumE. Calcite
11
What test would be best to differentiate fluorite and amethyst (a type of quartz)?
A. ColorB. StreakC. FluorescenceD. LusterE. Effervescence
12
You find a gold mineral and want to determine whether it is gold or pyrite. What test should you use?
A. StreakB. ColorC. EffervescenceD. LusterE. Smell
13
Quartz and calcite are both common minerals in our area and are found within rocks. Which of the following tests would most definitively determine which mineral is in the rock?
A. ColorB. LusterC. HardnessD. TasteE. Streak
14
What test would be best to differentiate quartz and feldspar?
A. ColorB. HardnessC. FluorescenceD. Fracture vs. CleavageE. Streak
Varieties of Quartz
Feldspar
15
What type of cleavage does amphibole have?A. BasalB. CubicC. RhombohedralD. PrismaticE. Octahedral
16
What type of cleavage does fluorite have?A. BasalB. CubicC. RhombohedralD. PrismaticE. Octahedral
17
What type of cleavage does calcite have?A. BasalB. CubicC. RhombohedralD. PrismaticE. Octahedral
18
What type of cleavage does muscovite have?A. BasalB. CubicC. RhombohedralD. PrismaticE. Octahedral
19
What type of cleavage does halite have?A. BasalB. CubicC. RhombohedralD. PrismaticE. Octahedral
20
What type of luster does quartz have?A. VitreousB. EarthyC. MetallicD. ResinousE. Greasy
21
What type of luster does pyrite have?A. Pearly B. EarthyC. MetallicD. ResinousE. Greasy
22
Which of the following minerals has the same composition as diamond (C)?
A. GalenaB. QuartzC. CorundumD. GraphiteE. Calcite
23
To which class of minerals would pyrite (FeS) belong?
A. Halides B. SulfidesC. CarbonatesD. OxidesE. Sulfates
24
To which class of minerals would quartz (SiO2) belong?
A. PhosphatesB. SulfidesC. ElementalD. SilicatesE. Sulfates
25
To which class of minerals would corundum (Al2O3) belong?
A. SilicatesB. OxidesC. HalidesD. CarbonatesE. Sulfates
26
To which class of minerals would malachite (Cu2CO3(OH)2) belong?
A. CarbonatesB. SulfidesC. PhosphatesD. Iron oreE. Mafic
27
Olivine contains a lot of magnesium and iron and a much lower portion of silica as compared to quartz. To which class of minerals would olivine belong?
A. MaficB. SulfatesC. PhosphatesD. HalidesE. Elemental
28
To which class of minerals would halite (NaCl) belong?
A. Iron oreB. HalidesC. SulfatesD. PhosphatesE. Oxides
29
To which class of minerals would gypsum (CaSO4·2H2O) belong?
A. SilicatesB. PhosphatesC. SulfatesD. OxidesE. Halides
30
While calcite effervesces easily, this mineral will effervesce, or bubble in acid, only if it is ground into a powder. What mineral is it?
A. HaliteB. CorundumC. GypsumD. PyriteE. Dolomite
31
What mineral is known for its very high density?
A. CorundumB. GraphiteC. SulfurD. GalenaE. Halite
32
Which mineral would most likely be found in a cave?
A. CoalB. CalciteC. CorundumD. SulfurE. Halite
33
Which mineral, with a hardness of 9, is often used on saw blades because of its extreme hardness?
A. FluoriteB. QuartzC. CorundumD. GraphiteE. Biotite
34
What mineral, with a hardness of only 1, is used in make-up?
A. MuscoviteB. GraphiteC. QuartzD. TalcE. Fluorite
35
What mineral can be identified by color alone?A. SulfurB. PyriteC. QuartzD. TalcE. Calcite
36
What mineral is used in pencils?A. CalciteB. GraphiteC. PyriteD. QuartzE. Corundum
37
You have two samples of quartz. Which statement may be incorrect?
A. They have approximately the same densities.
B. They have about the same hardness. C. They are the same color.D. They both have fracture.
38
This mica is the black mineral found in granite.
A. MuscoviteB. GraphiteC. BiotiteD. CalciteE. Quartz
39
The gemstone of this mineral, shown on the right, is peridot, and is the August birthstone.
A. QuartzB. OlivineC. BiotiteD. FluoriteE. Pyrite
40
The gemstone of this very hard mineral is ruby.A. SulfurB. QuartzC. CorundumD. GalenaE. Hematite
41
This iron ore mineral has a characteristic red streak.
A. HematiteB. CorundumC. ChalcopyriteD. OlivineE. Talc
42
This iron ore is naturally magnetic.A. BiotiteB. QuartzC. PyriteD. MagnetiteE. Muscovite