If a mineral is opaque,lustrous,malleable and can conduct heat and electricity,it is a(n) ____________
A) crystal
B) element
C) gemstone
D) metal
E) radioactive element
Correct Answer:
Verified
Q4: A _ is a naturally
Q5: It takes _ energy to produce
Q6: Tantalum is used primarily for the manufacture
Q7: In 2010,geologists from the U.S.military discovered nearly
Q8: According to critics,the U.S.General Mining Act of
Q10: The General Mining Act of 1872
Q11: Subsurface mining is used extensively in the
Q12: Bauxite ore is a source of
Q13: Q14:
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