Tanzanian chrysoprase rough and cabochons When we think of gemstones from Tanzania, tanzanite comes to mind first along with sapphire, ruby, emerald, spinel and garnet. It may surprise you to find out that the fine examples of chrysoprase rough and caboch
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Bright Dioptase crystals that appear to be stalactitic in form but are actually overgrown on needle-like crystals of an unidentified brown mineral. The specimen is columnar in form with bright sparkly crystals on all sides
Precious gem variety of olivine. One of the few gems that occurs in only one color. A celestial, astronomical mineral found in meteorites. At one time, it was more valuable than diamonds. Birth stone for August.
Australian Chrysoprase, variety of chalcedony (a cryptocrystalline form of silica) that contains small quantities of nickel. The word chrysoprase comes from the Greek χρυσός chrysos meaning 'gold' and πράσινον prasinon, meaning 'green.