snowflake obsidian

snowflake obsidian

[′snō‚flāk äb′sid·ē·ən]
(petrology)
An obsidian that contains white, gray, or reddish spherulites ranging in size from microscopic to a meter or more in diameter.
References in periodicals archive ?
Snowflake Obsidian:The stone of purity, it helps balancebody mind and spirit.