4x6 mm Dendritic Opal Table Cut Corner Drilled Cube - 15-16 Inch Faceted Rounds among other numerous names

among other numerous names

and it is the official birthstone of that month

Prehnite is translucent to transparent

Garnet was used as far back as the Bronze Age

Natural topaz colors include rare and valuable yellow

4x6 mm Dendritic Opal Table Cut Corner Drilled Cube - 15-16 Inch Faceted Rounds among other numerous namesThis 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.