Cut from natural dendritic Opal, these flat-backed cabochons are approximately 5mm in size and are sold per randomly selected piece.
Also known as "moss opal" and "merlinite", dendritic opal is classified as a common opal. It features fern, moss, or tree-like patterned inclusions (referred to as dendrites) of metallic oxides like manganese and iron, which give it its name. It generally is milk white in color with black or grey patterns, but it can also appear yellow, blue, or brown in color.
Family: Opal (common)
Mohs scale: 5.5-6
Locality: Mexico, Australia, and the USA. Smaller deposits can also be found in other countries.