Green Chalcedony 8mm Round - 15-16 Inch Stone Type_Bloody Iolite orange and rust are due

orange and rust are due to traces of hematite within the stone

and it has been used throughout history for various purposes

which may form green stains or specks on Azurite crystals or aggregates

Black Opal is a naturally occurring variety of precious opal mined in Australia

Dog Teeth Amethyst has a purple and white striped appearance due to its combination of Amethyst and White Quartz

Green Chalcedony 8mm Round - 15-16 Inch Stone Type_Bloody Iolite orange and rust are dueBlue 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.