Density is an easy way to distinguish between gold (density: approx.

Density is an easy way to distinguish between gold (density: approx. 19 g/cm3), fool’s gold (density: approx. 4.5 g/cm3), and sand (density: approx. 2.5 g/cm3). If a large golden rock has a mass of 252 g and a volume of 56 cm3, which type of mineral is it? 

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