Multiple Choice
Naturally forming glass (such as obsidian) is NOT considered a mineral because it
A) is not produced by geologic processes.
B) is organic.
C) does not have a fixed crystalline structure.
D) can be made synthetically as well as occur naturally.
Correct Answer:

Verified
Correct Answer:
Verified
Q45: Gemstones are often found in pegmatites,which are
Q46: Diamond and graphite are both polymorphs of<br>A)
Q47: When a solution becomes oversaturated,new solid particles
Q48: A mineral property defined as the density
Q49: For the majority of minerals,the streak obtained
Q51: Why are minerals often referred to as
Q52: The pattern of atoms in a crystal
Q53: Ore minerals,such as galena and hematite,tend to
Q54: The atomic mass of an element approximately
Q55: The way a mineral scatters light is