Black Obsidian 10x8mm Faceted Butterfly - 15-16 Inch With Matrix a microscopic protozoa with a

a microscopic protozoa with a silica shell

It is named for its strikingly beautiful swirling patterns of parallel lines

it is found in a pale and earthy green

Its bright green coloration is due to traces of chromium

Turritella Agate’s rich brown and black colors are patterned with the fossilized remains of sea creatures millions of years old

Black Obsidian 10x8mm Faceted Butterfly - 15-16 Inch With Matrix a microscopic protozoa with aEssentially 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)