Lapis 6x8mm Corner Drilled Table Cut Cube A Grade Bead - 15-16 Inch 15x20mm It is sometimes used for

It is sometimes used for scalpel blades in cardiac surgery

Obsidian ranges in color from opaque black

the resulting rock is dark gray to deep black in color and riddled with pits and holes where air was trapped in the stone

bronze-toned variation of quartz

Why Does Turquoise Need to Be Treated you ask

Lapis 6x8mm Corner Drilled Table Cut Cube A Grade Bead - 15-16 Inch 15x20mm It is sometimes used forLapis is a semi to precious stone and one of the most sought after throughout history. It is highly regarded for its beautiful blue color flecked with gold inclusions of pyrite, and was prized in ancient times for the ultramarine dye derived from it. This dye was said to create Michelangelos favorite shade of blue. It is one of the worlds oldest known stones, mined since 4000 BCE, originally from the Lapis to Lazuli mine in Afghanistan.