mineral
Bloodstone (Heliotrope)
Cryptocrystalline Quartz (SiO2 with iron oxide inclusions)
AI-generated identification · may be incorrectHardness: 6.5-7 on the Mohs scale; Color: Dark green with red, reddish-brown, or yellow spots/veins; Luster: Vitreous to waxy; Microcrystalline trigonal structure; Conchoidal fracture.
- Hardness
- 6
- Color
- Dark green with red, reddish-brown, or yellow spots/veins
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 on the Mohs scale; Color: Dark green with red, reddish-brown, or yellow spots/veins; Luster: Vitreous to waxy; Microcrystalline trigonal structure; Conchoidal fracture.
Formation & geological history
Formed at low temperatures through the deposition of silica-rich fluids in rock cavities and fractures, with red inclusions caused by hematite or jasper.
Uses & applications
Popular as a gemstone for cabochons, carvings, beads, polished tumbled stones, and ornamental items.
Geological facts
Historically known as Heliotrope, which means 'to turn toward the sun', it was traditionally believed to turn the sun's image red when submerged in water.
Field identification & locations
Look for a dark green chalcedony/jasper base matrix with characteristic flecks or veins of red hematite inclusions. Common locations include India, Brazil, Australia, and Madagascar.
