4x6 mm Dendritic Opal Table Cut Corner Drilled Cube - 15-16 Inch Moss and most commonly found with

and most commonly found with black inclusions

It was named and first described by the Greek philosopher and botanist Theosphrastus in 315 BCE

sold a piece of Green Tourmaline to Tiffany & Co

Smoky Quartz is a translucent smoky brown or gray variety of Quartz

Mixed Impression Jasper is a composite made by fusing stone fragments using heat

4x6 mm Dendritic Opal Table Cut Corner Drilled Cube - 15-16 Inch Moss and most commonly found withThis variety of opal is named "dendritic" for the small inclusions within it that resemble moss or ferns. These inclusions consist of iron, manganese and other metallic oxides captured during the forming of the rock. Opals are hydrated amorphous forms of silica, created when silica hardens within the fissures of other stones.