Mahogany Obsidian 10mm Round - 15-16 Inch Stone Type_Iolite once spewed through fractures in

once spewed through fractures in the planetary crust or from a volcanic eruption

between Topaz (8) and Corundum (9)

Each stone is unique in terms of its patterns

The material comes with variety of tan and crimson matrix colors which create a striking contrast to any color it may be enhanced

When tumbled it can have the look of polished steel

Mahogany Obsidian 10mm Round - 15-16 Inch Stone Type_Iolite once spewed through fractures inEssentially a volcanic glass, Obsidian ranges in color from opaque black, to green, brown, mahogany, black with rainbow colors, black with snowflake patterns, black with a golden sheen, and translucent black (Apache Tears)