Natural specimen, illustrative.
Chalcedony · Mohs 6.5–7
Bloodstone
Dark green chalcedony with red mineral inclusions. Also called heliotrope; a historic March birthstone.
- Composition
- SiO2 with mineral inclusions
- Hardness
- 6.5–7 on the Mohs scale · scratch resistance, not toughness
- Birthstone
- March
- Care
- Clean gently with a soft cloth and mild soapy water; rinse briefly and dry. Avoid heat, chemicals, ultrasonic cleaning and hard impacts. Ask about treatments before cleaning.
- Paired with
- Aries
- Symbolic
- Grounding, Confidence · Root chakra. Design vocabulary, not a physical effect.
Pairs well with
Stones that share its meaning.
Garnet
Garnet group · Mohs 6.5–7.5
Grounding · Confidence
Ruby
Corundum · Mohs 9
Confidence · Connection
Peridot
Olivine · Mohs 6.5–7
Confidence · Connection
Spinel
Spinel · Mohs 8
ConfidenceGem properties describe materials. Chakra and intention pairings are symbolic traditions and Mulu design choices, not measured energy or medical effects. Stones are not proven to treat disease or improve sleep.