Natural specimen, illustrative.
Tourmaline · Mohs 7–7.5
Paraíba tourmaline
Copper-bearing tourmaline associated with vivid blue and green colours. A name alone does not verify geographic origin.
- Composition
- Copper-bearing tourmaline
- 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.
- Symbolic
- Expression · Throat chakra. Design vocabulary, not a physical effect.
Pairs well with
Stones that share its meaning.
Aquamarine
Beryl · Mohs 7.5–8
Calm · Expression
Sapphire
Corundum · Mohs 9
Expression · Reflection
Topaz
Topaz · Mohs 8
Expression · Confidence
Turquoise
Turquoise · Mohs 5–6
Expression · CalmGem 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.