gemstone
Bloodstone
Chalcedony (Variety Heliotrope) - SiO2
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, deep dark green color with distinctive red or orange spots of iron oxide, vitreous to waxy luster, and microcrystalline trigonal/hexagonal crystal structure.
Identified More gemstone →
Explore Bloodstone in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6.5 to 7 on the Mohs scale, deep dark green color with distinctive red or orange spots of iron oxide, vitreous to waxy luster, and microcrystalline trigonal/hexagonal crystal structure.
Formation & geological history
Formed by the deposition of silica-rich groundwater in hydrothermal veins and cavities at low temperatures, often found within ancient volcanic and sedimentary rocks.
Uses & applications
Widely used in jewelry such as cabochons, rings, and pendants, as well as for ornamental carvings and collecting.
Geological facts
Historically known as the martyr's stone, ancient legends claimed the red spots were formed from the blood of Jesus Christ falling on green jasper.
Field identification & locations
Easily identified by its opaque dark green matrix flecked with bright red spots; commonly sourced from India, Brazil, Australia, and the USA.
More like this
Other gemstone specimens
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Gemstone Ring
N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ
gemstone
Amber
Succinite (Organic Gemstone)
mineral
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Pearl necklace
Pearl, primarily aragonite (CaCO₃) and conchiolin
gemstone