Minerals are classified into groups known as mineral classes primarily on a basis of ____________.
A) chemistry, specifically the cations within the chemical formula
B) chemistry, specifically the anions within the chemical formula
C) hardness; hard, soft, and medium are the three primary classes
D) number of cleavage directions present
Correct Answer:
Verified
Q22: With regard to minerals,hardness refers to _.
A)the
Q27: Minerals can be destroyed by _ .
A)melting
B)chemical
Q33: Trace amounts of impurity in a mineral
Q36: Which of the following minerals is softest?
A)quartz
B)calcite
C)talc
D)fluorite
Q41: What is not required for the production
Q42: Which common gemstone results from biomineralization?
A)diamonds
B)garnets
C)pearls
D)sapphires
Q44: The diamonds we see today do not
Q46: Ore minerals,such as galena,tend to be distinct
Q49: Which two gems are special versions of
Q50: Gemstones are commonly found in pegmatites,which are
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