Dendritic Opal, Cabochons, 25, 50 or 100 Gram Lot Assorted Shapes & Sizes

Dendritic Opal, Cabochons, Assorted Shapes & Sizes

This image is of a similar assortment of 100 grams of Dendritic Opal.      

50 gram lots will be 50% less pieces.    

25 gram lots will be 75% less pieces.   

Millimeter sizes mentioned are a suggested range, not a guarantee.

Dendritic Opal is a form of common Opal that has dark dendritic markings within the base Opal, which can be composed of Manganese, the dendrites (plumes) often appear to be shaped like mosses, ferns, or trees. So, it is also called Moss Opal. There have been over 60 types of Opals identified in the world, and each fall into one of three categories: Common Opals, Precious Opals, and the rare Rainbow Opals.

Dendritic Opal can be found all around the world. Although most opal mines are found in Australia, where the opal is the national gemstone. Today, Dendritic Opal is also found in various locations throughout United States, including Washington. Some international deposits are found in Turkey and Mexico so not all Dendritic Opal on the market is Australian.

Mohs Scale 6.5-7

This is a natural stone that has had no treatment other than cutting and polishing.