Mineral - Bloodstone (Heliotrope)

Name Heliotrope (Bloodstone)
Class Silicates
Category Microcrystalline quartz
Crystal system Trigonal
Chemical composition Silicon dioxide (SiO₂) with inclusions of hematite or red jasper
Hardness (Mohs scale) 6.5 to 7
Transparency Opaque
Geographical origin India, Brazil, Australia, China, United States