Chalcedony
Chalcedony
A gentle family of stones, soft-spoken and grounding.
Chalcedony is a family, not a single stone. The term refers to microcrystalline or cryptocrystalline quartz that includes agate, carnelian, onyx, sard, chrysoprase, bloodstone, jasper, and heliotrope. It also names the gentle pale-blue or pink translucent stones from Turkey, Madagascar, and the American West. Most varieties share a hardness of 6.5 to 7 on the Mohs scale, making chalcedony durable for everyday wear. Treatment practices vary significantly across the family, and that variation is worth understanding before you buy.
Read the full Chalcedony Crystal Guide →
