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 hardstone carvings.

*Colour may vary from that shown
KCQS 103
KCQS 103
KCQS 104
KCQS 104
KCQS 107
KCQS 107
KCQS 111
KCQS 111
KCQS 119
KCQS 119
WS 127
WS 127
WS 146
WS 146
WS 2304
WS 2304
WS 2806
WS 2806
WS 8251
WS 8251
WSA 1157A
WSA 1157A
WSA 1158(2)
WSA 1158(2)
WSA 1158A
WSA 1158A
WSA 1208A
WSA 1208A
WSA 1386A
WSA 1386A
WSA 1517A
WSA 1517A
WSA 1802A
WSA 1802A
WSB 2207B
WSB 2207B
WSB 2208B
WSB 2208B
WSB 3102B
WSB 3102B
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