Black Tourmaline Black Tourmaline:B-350-500 Gram Size: 13 x 2 x

Size:   13 x 2 x 16Cms

and internal features typical of fluorite

It is also the primary ore of antimony

extraterrestrial origin

and occasionally red or yellow

Black Tourmaline Black Tourmaline:B-350-500 Gram Size: 13 x 2 xSize: 4 X 3. 5 X 4 Cm (Avg) Location: India Product Description Black Tourmaline is a common variety of tourmaline known for its deep black color and striated crystal structure. It typically forms in elongated, prismatic crystals with natural vertical lines along the surface. Composed of complex boron silicate minerals, it has a hardness of 77. 5 on the Mohs scale, making it suitable for both jewelry and decorative use. It is commonly sourced from