* Stone: Polished Rainbow Obsidian Crystal * Other Names: Sheen Obsidian and Iris Obsidian * Mohs Hardness: 5 to 5.5 * Colors: Black, Iridescent Green & Other Colors (Not every stone will contain every color).*** * Stone Size: Small, approximately 1/2" to 3/4" (Some stones ,may be slightly larger or smaller (See quarter, ruler, & hand pictures)).* * Country of Origin: South Africa * Stone Shape: Undrilled tumbled freeform * Stone Count: Will vary slightly due to variations in size (See individual weights for approximate stone count).*** * Selection Process: Random blind scoop. * Package Weight: We base what is sent on weight.