Madagascar Green Dendritic Opal 10mm Round - 15-16 Inch Agate10mm The color of Smoky Quartz

The color of Smoky Quartz is due to natural irradiation and traces of aluminum within the crystal lattice of the stone

Blue Lace Agate is a naturally occuring soft blue agate

Its name derives from the Sinhalese word “turamali

and pattern

Madagascar Green Dendritic Opal 10mm Round - 15-16 Inch Agate10mm The color of Smoky QuartzThis 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.