Bloodstone
Quartz var. Bloodstone (Heliotrope) · Semi-Precious Gemstone / Decorative Stone
Crystal System
Trigonal, microcrystalline crypto-crystalline quartz habit (massive, tumbled)
Mineral Group
Silicates, specifically Tectosilicates
Chemical Formula
SiO2 with inclusions of Fe2O3 (Hematite) and chlorite/amphibole
Formation Process
Low-temperature hydrothermal deposition or sedimentary precipitation of silica gel with iron oxide inclusions
About This Crystal
Tumbled, polished pocket-sized specimen with a deep forest green opaque body and characteristic vibrant red to brownish-red iron oxide spots and streaks resembling blood droplets
Physical Characteristics
Dark green color with red flecks, white streak, no cleavage, conchoidal fracture, specific gravity around 2.65, brittle tenacity, vitreous to waxy luster when polished
Optical Properties
Singly refractive behavior typical of microcrystalline quartz, aggregate birefringence, opaque to translucent at thin edges, no pleochroism
Hardness & Durability
Origin Region
India, Brazil, Australia, USA, and South Africa; typically forms in sedimentary rocks and hydrothermal veins
Hardness & Durability
Mohs hardness of 6.5 to 7, good toughness due to microcrystalline interlocking structure, durable for everyday jewelry wear
Care & Maintenance
Safe to clean with warm soapy water, avoid harsh acids and prolonged exposure to direct sunlight to prevent potential color alteration, store away from harder gems
Rarity & Value
Common to uncommon, value determined by intensity of green background, contrast, distribution of red spots, and lack of extensive fracturing; affordable price range
Special Characteristics
Distinctive blood-red hematite speckling embedded within a dark green chalcedony matrix, giving it the classic heliotrope appearance
Lore & History
Historically known as the martyr's stone in Christian lore, anciently believed to have formed from drops of Christ's blood falling on jasper at the crucifix; used in traditional crystal healing for courage, vitality, and grounding, associated with the root and heart chakras