Description
Tourmaline is a crystalline silicate mineral group in which boron is compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is a gemstone & can be found in a wide variety of colors. Black Tourmaline is found in Africa, Brazil, Pakistan, the United States & many other places around the world. Like all tourmaline, black tourmaline is quite hard, with a hardness of 7 to 7.5 on the Mohs scale. Size - 10-50mm Color - Black Drilled/Undrilled - Undrilled Polished or Raw - Raw Manmade or Natural - Natural Dyed or Natural Color - Natural You will receive a 100 Gram set of Black Tourmaline rough chunks of varying shape & size. 100 Grams Natural Black Tourmaline Rough Chunks, 10-50mm One Of A Kind, Mixed Size Chunks
