Blue Chalcedony (Marbled) 10mm Round 15-16 Inch Stone Type_Blue Porcelain Agate including lazurite

including lazurite

These mines are also famous for sourcing North-American Jasper

A cryptocrystalline Chalcedony

tans and golden tones that occur naturally within the stone

It has been mistaken for ruby and sapphire at times

Blue Chalcedony (Marbled) 10mm Round 15-16 Inch Stone Type_Blue Porcelain Agate including lazuriteBlue Chalcedony is a naturally occurring soft blue translucent stone. It is a member of the Quartz family, a form of silica with a cryptocrystalline structure that incorporates Moganite along with the Quartz. Known in antiquity as the Speakers Stone, it is believed to have been worn Cicero, the great Roman orator. These strands were cut into beads with some of the material the Chalcedony was mined out of remaining, creating a unique "marbled" look.