Turquoise Stones
by Science Photo Library
Title
Turquoise Stones
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Turquoise stones. Polished stones of the mineral turquoise (hydrated copper aluminium phosphate). These opaque gemstones are cryptocrystalline, meaning that their crystals are only visible under a microscope. Turquoise stones have been mined for use as ornamental jewellery for over 8000 years. Early examples come from the Egyptian, Persian and Native American cultures. Deposits are found in the southern USA, Australia and the Middle East.
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September 20th, 2018
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