Black Tourmaline - Brazil - 10 pounds Green it has a density ranging

it has a density ranging from 1

These bands often resemble the patterns seen on a tiger's fur

4 grams per cubic centimeter

while fuchsite often has a pearly or vitreous luster due to its mica nature

Black Tourmaline - Brazil - 10 pounds Green it has a density rangingMixed Sizes. Mostly multiple pieces per pound. Local: Brazil 1. Color: As the name suggests, black tourmaline typically exhibits a deep black color, although it can sometimes have a slight brownish tint. It often occurs in long, prismatic crystals, but can also be found in massive formations. 2. Hardness: Black tourmaline has a hardness of 7 to 7. 5 on the Mohs scale, making it relatively durable and resistant to scratching. 3. Clarity: Black