Black Tourmaline Top Polished Point - 1.5"-3" - 2 KILO LOT tumbled gemstones for price comparison and the round black inclusions

and the round black inclusions are riebeckite

creating its warm golden-yellow hues

Kyanite is an aluminum-rich crystal that forms on metamorphic rock under extremely high pressure

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Black Tourmaline Top Polished Point - 1.5"-3" - 2 KILO LOT tumbled gemstones for price comparison and the round black inclusionsQuantity: 2 kilograms Pieces measure on average: 1. 5 3 in Black Tourmaline, also known as Schorl, is one of the most common varieties of tourmaline, noted for its deep black color and vitreous luster. It is a boron silicate mineral with strong pleochroism, appearing differently from various angles.