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iron or manganese impurities within the stone
brown to golden-yellow hydrous potassium iron titanium silicate mineral
unique iridescent patinas (caused by centuries of burial)
Makes 3 sizes of rings: 7x9 mm / 0
It displays a visual property called “pleochroism
Chalcedony 8x16-12x22mm Tear Drop Beads - 15-16 Inch Brown Eye iron or manganese impurities withinBlue 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.
