Which of the following statements concerning crystals is NOT true?
A) They are considered crystals only if they are naturally occurring.
B) On a microscopic level, the crystals of any given mineral possess exactly the same structure even if the crystals are not well formed.
C) They possess an orderly arrangement of ions or atoms in a three- dimensional latticework.
D) In well- formed crystals of a given mineral, angles among the planar surfaces are always the same.
Correct Answer:
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Q1: Which of the following statements about mineral
Q2: Which of the following statements about gemstones
Q3: A van der Waals bond is a
Q5: In a covalent bond, atoms:
A) share electrons.
B)
Q6: The term polymorphism refers to:
A) two mineral
Q7: In an ionic bond, atoms:
A) lose or
Q8: Which of the following statements concerning diamonds
Q9: Which of the following statements concerning hydrogen
Q10: Mineral cleavage indicates:
A) unequal bond strength in
Q11: The mineral quartz is distinctive because it
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