Bloodstone

Real mineral · uncommon · SiO₂

Dark green chalcedony spotted with red jasper inclusions of iron oxide. The red spots were historically interpreted as drops of blood. Used for carved seals and signet rings since antiquity.

Identity

Formula

SiO₂

Chemical class

silicate

Mineral group

Amethyst, Carnelian, Chalcedony, Citrine, Quartz, Rose Quartz, Smoky Quartz, Tiger's Eye

Also known as

Heliotrope, Martyr's stone

Crystallography

Crystal system

trigonal

Habits

massive, nodular

Fracture

conchoidal

Physical properties

Mohs hardness

7

Density

2.61 g/cm³

Luster

waxy, vitreous

Colors

dark green, green, red, orange-red

Streak

white

Transparency

opaque

Geology

Origins

sedimentary, hydrothermal

Host rocks

basalt, alluvial deposits

Associated minerals

Chalcedony, Chalcedony, Quartz

Geography

India, Brazil, Australia, USA, China

Classification

Rarity

uncommon

Gem quality

Yes

Arcane properties

Affinity

life, death

Effects

healing, warding

Planar origin

Material Plane

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