Black Obsidian 8x10-9x13mm Side Drilled Pebble - 15-16 Inch Seraphinite displaying these colors in patterns

displaying these colors in patterns of parallel bands

Its color ranges from pink through lilac to a rich purple color

Botswana Agate was formed nearly 187 million years ago by lava flowing in waves from long faults in the earth

a turquoise trader and an electrical engineer

Blood Quartz is a clear to milky-white silicon dioxide mineral

Black Obsidian 8x10-9x13mm Side Drilled Pebble - 15-16 Inch Seraphinite displaying these colors in patternsEssentially 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)