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Earth Science Ch 3 Minerals Flashcards | StudBud
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Earth Science Ch 3 Minerals
Earth Science Ch 3 Minerals
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1
What would happen if you rubbed a piece of fluorite against a piece of feldspar?
The feldspar would be scratched
Both would be scratched
The fluorite would be scratched
Neither would be scratched
2
The term used to describe how light is reflected from a mineral’s surface is
glow.
luster.
streak.
density.
3
An example of a mineral made up of a pure element is
copper.
quartz.
coal.
glass.
4
The atoms of a mineral are arranged in a repeating pattern to form a solid called a(n)
bond
crystal
molecule
streak
5
Rather than splitting apart evenly, most minerals have a characteristic type of
cleavage.
crystal.
luster.
fracture.
6
The color of a mineral’s powder is called its
streak.
hardness.
density.
luster.
7
The softest mineral on the Mohs hardness scale is
gypsum.
quartz.
apatite.
talc.
8
The splitting of a mineral along flat surfaces is a property called
crytallization
cleavage
streak
fracture
9
You can roughly compare the ____________________ of two mineral samples of the same size by hefting them.
densities
mass
10
Which term is used to describe how light is reflected from a mineral’s surface?
luster
color
streak
cleavage
11
A mineral with a hardness of 6 will scratch a mineral with a hardness of
more
than 6.
True
False
12
The faster magma cools, the smaller the mineral crystals form.
True
False
13
Gold is an example of a(n) ____________________ that occurs in nature in a pure form.
element
compound
14
Which minerals in the table will scratch quartz?
only other quartz
flourite, apatitie, feldspar
topaz, corundum, and diamond
talc, gypsum, calcite
15
Shiny minerals, such as galena, are said to have metallic _______________
cleavage
streak
luster
fracture
16
A mineral is always a(n) ____________________ because it has a definite volume and shape.
liquid
gas
plasma
solid
17
What is the hardest known mineral?
quartz
diamond
talc
gold
18
What would you expect to happen if you rubbed a mineral of hardness 7.5 against a piece of quartz?
The mineral would scratch the quartz.
The quartz would scratch the mineral.