Black Tourmaline - Brazil - 10 pounds Rose Quartz In some specimens

In some specimens

75 grams per cubic centimeter

This vibrant coloration distinguishes it from other types of garnets

94 grams per cubic centimeter

as it often showcases intricate patterns and colors within the stone

Black Tourmaline - Brazil - 10 pounds Rose Quartz In some specimensMixed 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