Multiple Choice
Natural glass 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 being a naturally occurring substance
Correct Answer:

Verified
Correct Answer:
Verified
Q41: Diamond and graphite are both polymorphs of
Q42: Which of the following minerals is hardest?<br>A)quartz<br>B)calcite<br>C)talc<br>D)fluorite
Q43: Topaz,with Mohs hardness of 8,is twice as
Q44: The most recently formed portion of any
Q45: The vast majority of mineral types _
Q46: Diamonds are usually found in pipes 50
Q48: Trace amounts of impurity in a mineral
Q49: Minerals are classified into groups primarily on
Q50: Minerals utilized by humans as a source
Q51: The shininess of a mineral is a