This is the pink tourmaline ring. Metal – silver plated. American ring size 7 1/4. Dimensions: 0.5 x 0.4 x 0.1″ (1.2 x 1 x 0.3cm). Weight – 0.2oz (5 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.