A cubic centimeter each of quartz, olivine, and native gold weighs 2.5, 3.0, and 19.8 grams, respectively. These weights indicate that ________
A) gold has a higher density and specific gravity than quartz and olivine
B) olivine melts at a higher temperature than either gold or quartz
C) gold is 6 to 7 times harder than olivine and quartz
D) gold and olivine qualify as silicates, but quartz would not
Answer: A
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