Description
TOURMALINE SLICE
This is the polished on the one side black tourmaline slice (schorl) with quartz and feldspar. Dimensions: 4.1 x 3.2 x 0.2″ (10.5 x 8.2 x 0.5cm). Weight – 3.1oz (89 grams). Origin: Russia, Transbaikalia.
Some information about tourmaline:
In 1703, Dutch sailors first brought into Europe elongated crystals of purple-pink color. Following the inhabitants of Ceylon, they called these rocks «turemali» that are meaning is mineral, jewel. Thus arose the modern term tourmaline, which is called a variety of silicate, which includes compounds of aluminum, boron, manganese and magnesium.
Tourmaline stone features a large variety of colors. Ruby-red stones called rubellite, purple-red stones found in the Urals – siberite. Verdelite is green tourmaline, indigolite – blue. Yellowish-brown stones on the deposit Drava in Austria called dravite. Rare colorless crystals called ahroite. A very common black variety of tourmaline calls schorl (More information about tourmaline).
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