Rock Identifier
Bloodstone (Chalcedony (Variety of Quartz)) — gemstone
gemstone

Bloodstone

Chalcedony (Variety of Quartz)

AI-generated identification · may be incorrect

Hardness of 6.5 to 7 on the Mohs scale, dark green color with red or brown spots of hematite, vitreous to waxy luster, and microcrystalline structure with no cleavage.

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Physical properties

Hardness of 6.5 to 7 on the Mohs scale, dark green color with red or brown spots of hematite, vitreous to waxy luster, and microcrystalline structure with no cleavage.

Formation & geological history

Forms by the deposition of silica-rich hydrothermal solutions in cavities and fractures of existing rocks at low temperatures.

Uses & applications

Widely used for making cabochons, carved ornaments, signet rings, and as a traditional healing stone.

Geological facts

Historically known as heliotrope, it was called the 'stone of Babylon' in ancient times and believed to hold mystical properties.

Field identification & locations

Easily identified by its opaque dark green matrix flecked with distinct red spots; commonly found in India, Brazil, Australia, and the US.