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Turquoise — specimens [gallery view]


A secondary mineral occurring in hydrothermal porphyry copper deposits (Anthony et al., 2001—2005). One of the oldest gemstones; used by Ancient Egypt rulers.
Turquoise — specimen 0601
0601
USA
Turquoise — specimen 0602
0602
USA

Turquoise — specimens — 2
Page 1


Gemmology — gemstones
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The specimens illustrated in this site do not exist in the collections of the National Museum of Natural History, Sofia.