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The least reliable
characteristic used in
identify a mineral
This is used to produce
specific types of laser
light.
This gem is made
from quartz that
contains iron
The process of melting a
substance to separate the
metal
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The number of
elements that form
98% of Earth’s crust.
The least reliable
characteristic used in
identify a mineral
This is used in
timepieces and
electronics.
This is where the
Great Star of Africa
can be found
Minerals that are left
behind when fluids run
through weaknesses in
rock are called
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A six sided shape
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The two main
elements making up
the silicate mineral
group.
The way a mineral
reflects light.
A mineral or rock that
contains enough of a
useful mineral that it
can be mined at a profit
This gem comes from
the mineral spinel
The hardness of a mineral
that cannot be scratched
by your fingernail, but can
be scratched by a steel
nail
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The name of two processes
by which crystals form.
Quartz belongs to this
group of minerals
The ratio of the weight of
a mineral compared an
equal volume of water
This is refined from
bauxite.
This mineral vibrates
when exposed to an
electric field
These minerals are used
in the production of
titanium
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This determines the size of
a crystal formed from
magma.
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This mineral forms
when too much of a
substance is dissolved
in water. *like the
ocean
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The color of a mineral
when it is in a powdered
form
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This is used in
wheelchairs and
eyeglass frames
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The weight of the
Hope diamond in
carats or grams
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Requirements for being a
mineral
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A solid in which the atoms
are arranged in orderly,
repeating patterns
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In this group the
minerals contain
silicon and oxygen.
This mineral is magnetic