Snowflake Obsidian, Tumbled Stone, 1 lb lot Rainbow Sapphire A polished specimen from Graveyard 2 crystals have a SKU000945 Onyx Size:1 1/4"

A polished specimen from Graveyard Point mining claim in Oregon

formed through felsic lava that rapidly cools after exploding past the earth’s crust

7 cm x 4 cm

Rather than the "traditional" geode people think of that is completely hollow

"The River Runs North" also explains the hows and whys of Montana Moss Genesis and contains 254 full color photographs of the different types of Montana Moss Agate

Snowflake Obsidian, Tumbled Stone, 1 lb lot Rainbow Sapphire A polished specimen from Graveyard 2 crystals have a SKU000945 Onyx Size:1 1 4" A polished specimen from Graveyard Point mining claim in Oregon formed through felsic lava that rapidly cools after exploding past the earth’s crust