Madagascar Green Dendritic Opal 10mm Round - 15-16 Inch Gem House USA Blue Chalcedony is a naturally

Blue Chalcedony is a naturally occurring soft blue translucent stone

It's perfect for gift giving or keep for yourself

Direct from the mines

Apple Jasper carries the deep red to bright red hues of apples

Madagascar Green Dendritic Opal 10mm Round - 15-16 Inch Gem House USA Blue Chalcedony is a naturallyThis 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.