mineral

Bloodstone (Heliotrope)

Silicon Dioxide (SiO2) with inclusions of Hematite

Hardness: 6.5-7 on Mohs scale; Color: Dark green with red speckles; Luster: Vitreous to waxy; Crystal structure: Hexagonal (Cryptocrystalline); Cleavage: None (Conchoidal fracture); Specific gravity: 2.58-2.64

Hardness: 6
Color: Dark green with red speckles
Luster: Vitreous to waxy

Identified March 28, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the deposition of silica-rich water in cavities and cracks in other rocks, often volcanic, at low temperatures. Red spots are caused by iron oxide (Hematite) inclusions.

Uses & applications

Used primarily in jewelry (cabochons and beads), decorative carvings, signet rings, and as a popular semi-precious stone for gemstone collectors and metaphysical enthusiasts.

Geological facts

According to Christian legend, the red spots are said to represent the blood of Jesus Christ fallen onto green jasper during the crucifixion. It was also highly valued in ancient Babylon and Egypt for its supposed magical properties.

Field identification & locations

Identify by its opaque dark green base and distinctive red 'blood-like' splatters; it will not scratch with a knife but can scratch glass. Common locations include India, Brazil, Australia, Germany, and the United States (California).

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