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Minerals

Across
The scale used to determine hardness of a mineral
Mineral with hardness of 10
The most easily observed quality of a mineral
Number of sides that a quartz crystal has
A mineral with closely packed atoms has a ____density
A mineral's resistance to scratching
Often called "fools gold"
A mineral that breaks in orderly well defined planes has this
Appearance of polished metal
The color of a mineral's powder.
Naturally occurring
A geometric arrangement of mineral faces
Down
Mineral with hardness of 1
The mineral found in table salt
Produces a black of gray streak. commonly used to make pencils
The mass per unit of volume
Produces an odor referred to as "rotten eggs"
Rough and random breakage of a mineral
A mineral leaving a reddish streak
A luster like glass
The most common arrangement of crystals
They way a mineral reflects light