A Cubic Centimetre of Quartz, Olivine, and Gold Weigh 2

question 10

Multiple Choice

A cubic centimetre of quartz, olivine, and gold weigh 2.5, 3.0, and 19.8 grams respectively. This indicates that _______.

• A) gold and olivine are silicates, quartz is elemental silicon
• B) gold has a higher specific gravity than quartz and olivine
• C) gold is six to seven times harder than olivine and quartz
• D) olivine and quartz powders are harder than metallic gold

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