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Earth Science - Minerals Flashcards | StudBud
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Earth Science - Minerals
Earth Science - Minerals
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Answers
1
Scratching a mineral against a glass plate is a method used for determining the mineral's
Color
Hardness
Cleavage
Luster
2
Which mineral shows no cleavage, a hardness of 7, and a composition of SiO
2
?
Graphite
Halite
Quartz
Garnet
3
Metallic and nonmetallic are examples of...
Fracture
Talc
Luster
Color
4
Streak is the color of a mineral's...
Crystal
Powder
Color
Luster
5
Which statement is best supported by the Mohs Scale?
Calcite will be scratched by a copper penny.
A fingernail will scratch calcite but not gypsum.
The mineral apatite will scratch topaz.
A steel file has a hardness of about 7.5.
6
The mineral wollastonite has a hardness of 4.5 to 5. Which mineral could easily scratch it?
Talc
Halite
Garnet
Fluorite
7
Which mineral has a hardness of 2.5-3 and makes a good construction material?
Gypsum
Magnetite
Biotite Mica
Pyroxene
8
Which mineral leaves a green-black powder when scratched against an unglazed porcelain plate?
Hematite
Pyrite
Galena
Graphite
9
The natural shape of a mineral is called its...
fracture
luster
cleavage
crystal
10
The minerals olivine, garnet, and calcite all share the property of
Hardness
Chemical Composition
Luster
Color
11
Which property of the diamond allows diamond powder to be used to shape gems for jewelry?
Cleavage
Crystal Shape
Luster
Hardness
12
Moh's scale arranges minerals according to their relative...
Specific gravity
Resistance to breaking
Resistance to scratching
Specific heat
13
Dilute hydrochloric acid tests for...
Hydrogen Carbonate
Calcium Carbonate
Iron Oxylate
Sodium Carbonate
14
What mineral would break with cleavage, create greenish black powder, and scratch glass?
Quartz
Galena
Graphite
Amphibole
15
Which mineral has a metallic luster, a black streak, and an ore of iron?
Galena
Graphite
Magnetite
Pyroxene
16
The amount of matter in a given volume is a mineral's
density
weight
hardness
streak
17
4 minerals are shaken in a box for 10 minutes. Which would experience the most abrasion?
Quartz
Pyroxene
Amphibole
Galena
18
What is the best way to determine if a mineral sample is calcite or quartz?
Measure the mass of the mineral.
Place the mineral near a magnet.
Observe the color.
Place a drop of acid on the mineral.
