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7 Cards in this Set

  • Front
  • Back
A mineraloid is defined as:
A naturally occuring substance that lacks a crystaline structure.
Are all solids crystalline substances
No
Is it true that:
Minerals are composed of many small rocks?

Biotite is a white meca?

Quartz has conchoidal fracture?
NO
Is opal a mineral
No
Can a mineral be composed of only one element?
Yes
Are the smooth faces on a quartz crystal cleavage planes?
Yes
Can a mineral form from volcanic gases?
Yes