Natural specimen, illustrative.
Tourmaline group · Mohs 7–7.5
Tourmaline
A chemically diverse gem group. Pink and green varieties are well known; colours can occur together in one crystal.
- Composition
- Complex borosilicate
- Hardness
- 7–7.5 on the Mohs scale · scratch resistance, not toughness
- Birthstone
- October
- 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
- Libra · Goat years
- Symbolic
- Connection, Creativity · Heart chakra. Design vocabulary, not a physical effect.
Pairs well with
Stones that share its meaning.
Emerald
Beryl · Mohs 7.5–8
Connection
Pearl
Organic gem · Mohs 2.5–4.5
Calm · Connection
Ruby
Corundum · Mohs 9
Confidence · Connection
Peridot
Olivine · Mohs 6.5–7
Confidence · ConnectionGem 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.