Opal in basalt from Pershing County, Nevada. Polished Slab with decent sections of color. This is a unique locality with a large selection of Opal’s including Fire Opal , Crystal Opal , Hydrophane Opal , Hyalite Opal And a gorgeous iridescent opal looking similar to Mexican “Galaxy” Opal or “Leopard” and can have a broad spectrum of background colors including off white , white , beige , orange and the most sought after are black and chocolate. Opticon is recommend but not essential prior to cutting or lapidary.

Some slabs can be hydrophane resulting in loss of color until dried again.