Dendritic Black Opal 8mm Round - 15-16 Inch Yellow Jasper creating a unique "marbled" look

creating a unique "marbled" look

Mexican Laguna Lace Agate is one of the most prized agates in the world

These strands were cut into beads with some of the material the Chalcedony was mined out of remaining

Sonora Jasper is the trade name for Sonora Dendritic

Dendritic Black Opal 8mm Round - 15-16 Inch Yellow Jasper creating a unique "marbled" lookThis 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.