Gems, Precious Stones, Precious Metals - Quartz Quartz- Gem Color 18 - #51484F
Quartz is the second most abundant mineral in the Earth's continental crust,
after feldspar. There are many different varieties of quartz, several of which
are semi-precious gemstones. Especially in Europe and the Middle East,
varieties of quartz have been since antiquity the most commonly used minerals
in the making of jewelry and hard stone carvings.
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Shown is a Quartz crystal cluster from Tibet | |
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