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2. Gems of Sri Lanka - Wikipedia

   en.wikipedia.org/wiki/Gems_of_Sri_Lanka

   Sri Lanka, geologically speaking is an extremely old country. Ninety percent of the rocks of the island are of Precambrian age, 560 million to 2,400 million years ago. The gems form in sedimentary residual gem deposits, eluvial deposits, metamorphic deposits, skarn and calcium-rich rocks. Nearly all the gem formations in Sri Lanka are located ...

3. Kandyan jewellery - Wikipedia

   en.wikipedia.org/wiki/Kandyan_jewellery

   Kandyan jewellery is handmade and was designed specifically for the royal families. It carries symbols of wealth, prosperity, grandeur, strength, well-being, solidarity, virtue, passion and valour. It is worn by women and men of royal or noble births. The jewellery is highly sought after today with important pieces such as the bridal-set having ...

4. Amethyst - Wikipedia

   en.wikipedia.org/wiki/Amethyst

   Amethyst. Amethyst is a violet variety of quartz. The name comes from the Koine Greek αμέθυστος amethystos from α- a-, "not" and μεθύσκω ( Ancient Greek) methysko / μεθώ metho ( Modern Greek ), "intoxicate", a reference to the belief that the stone protected its owner from drunkenness. [ 1]

5. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   Gemstone. Group of precious and semiprecious stones—both uncut and faceted—including ( clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or ...

6. Chrysoberyl - Wikipedia

   en.wikipedia.org/wiki/Chrysoberyl

   Chrysoberyl. The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula Be Al 2 O 4. [ 5 ][ 6 ] The name chrysoberyl is derived from the Greek words χρυσός chrysos and βήρυλλος beryllos, meaning "a gold-white spar". Despite the similarity of their names, chrysoberyl and beryl are two completely different ...

7. Charoite - Wikipedia

   en.wikipedia.org/wiki/Charoite

   Alongside jewelry, due to the fact that the material can be massive in size, charoite can be used in the making of bookends, vases, goblets, boxes, or in small statues. Despite its relatively high hardness, it makes poor center pieces in rings and in bracelets. As it is a heat sensitive mineral, the mechanical cleaning of it should be avoided.