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Topaz is an aluminium silicate containing fluorine and hydroxyl. Purely, it is colourless (white) ; it is the impurities which cause the variations of colour. “Topaz ranges from colourless to yellow, orange, red-brown, light to dark-blue, pink to red, violet … Continue reading
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Tanzanite is a variety of Zoisite (calcium aluminum silicate ) and has a colour varying from blue to violet. This stone is Heat treatments enhance the Tanzanite’s colours. This gemstone is named “Tanzanite” because a deposit was found in 1967 … Continue reading
This gallery contains 2 photos.
Apatite is a calcium phosphate mineral. It is the most widespread phosphate in the nature. The name Apatite derives from Greek “apatein” meaning “misleading” because this gemstone was confused with other minerals like tourmaline, peridot, emerald or aquamarine. Surprisingly, Apatite … Continue reading