Dendritic Opal 9-10mm Irregular Rondelle - 15-16 Inch Round Light Blue Matrix Gamma ray irradiation

Gamma ray irradiation

Malachite was used extensively as decoration in the palaces of Russian tsars and forms the columns of St

and chromium lends a beautiful pink or purple

light gray or black

Zachery-processed turquoise has similar gemological properties to untreated turquoise

Dendritic Opal 9-10mm Irregular Rondelle - 15-16 Inch Round Light Blue Matrix Gamma ray irradiationThis 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. Note Due to the unique hand made manufacturing process of these beads, the strand length, bead measurements, colors, and beads