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Earth Science Ch. 3 Review: Minerals Flashcards | StudBud
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Earth Science Ch. 3 Review: Minerals
Earth Science Ch. 3 Review: Minerals
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1
Crystals formed on the edge of volcanoes usually have very ____ crystals from cooling fast.
large
small
2
Which scale is used to determine a mineral's hardness?
Sufu
Moh
Richtor
Talc
3
Which of the following is the correct units for density?
g/mL
g/cm3
g
mL
4
Which of the following cause diamonds to form?
water & oil
pressure & heat
oil & pressure
heat & water
5
Why is the Congo in such poverty?
war
genocide
no machines
stolen minerals
6
Minerals always exist in ___________ form.
organic
solid
liquid
gas
7
Which is the correct measurement for volume
mL
cm3
g/mL
g
8
What country did a genocide break out in?
Asia
Congo
Rwanda
Russia
9
Using the chart below, which mineral is the most hard?
Apatite
Topaz
Calcite
Talc
10
Which of the following with quartz NOT be able to scratch?
talc
calcite
apatite
diamond
11
The measure of how easily a mineral can be scratched.
fracture
hardness
cleavage
luster
12
Which president signed an act to ensure our electronics are from "clean mines"
Reagan
Obama
Busch
Washington
13
Which of the following will scratch topaz?
orthoclase
apatite
diamond
gypsum
14
Which is the most soft mineral?
quartz
feldspar
diamond
topaz
15
Which element causes PINK color in diamonds?
sulfur
boron
arsenic
unknown
16
Property of minerals to break with rough or jagged edges
fracture
breakage
cleavage
streak
17
Why are lab made gems not considered minerals?
they are not natural
they do not have atoms
not solids
they are organic
18
Where are diamonds formed?
Earth's crust
Deep in Earth's interior
19
How do you measure the volume of an object that is NOT square?
water displacement
triple beam balance
L x W x H
20
A mineral is classified as an ore as long as it is ________
used as jewelry
profitable and useful
solid and natural
rare and valuable
21
What is the hardness of diamond?
8
10
9
1
22
Which of the following is NOT a quality of diamonds?
consistency
cut
carat
color
23
Where is the Congo?
Africa
North America
Asia
India
24
A copper coin will NOT scratch which of the following?
Calcite
Fluorite
Gypsum
Talc
25
The way light is reflected back off of a mineral's surface is called
streak
hardness
fracture
luster
26
After being formed, how do diamonds make their way to the surface?
water erosion
winds
volcanoes
glaciers
27
If you found very LARGE formed crystals, it most likely cooled ____________
slow
fast
in water
28
What percent of the world's tantalum is produced by the Congo?
5-10%
20-50%
70-80%
100%
29
The powder form of a mineral when rubbed on a porcelain plate.
luster
hardness
color
streak
30
Which of the following is NOT a requirement for minerals?
soild
crystalline form
synthetically made
definite chemical composition
31
Which of the following is NOT something required by minerals?
formed from living organisms
definite chemical composition
solid
natural
32
What is the hardness of calcite?
6
3
1
9
33
A fingernail will scratch which of the following?
fluorite
gypsum
diamond
calcite
34
Which of the following is the correct units for mass?
mL
lbs
cm3
g
35
Why are the minerals coming from unclean mines?
United Kingdom runs it
Congo in civil war
Tsunami wrecked mines
36
What is the hardness of quartz?
7
6
2
3
37
Something that comes from living material is called____________
organic
plastic
areobic
oxygenated
38
TRUE or FALSE: One property is usually sufficient for identifying minerals.
TRUE
FALSE
39
A variety of colors is caused by _________________
facturing
hardness
impurities
animals
40
True or False: Color is a good indicator of a mineral.
FALSE
TRUE
