Natural specimen, illustrative.
Howlite · Mohs 3.5
Howlite
A white, often grey-veined borate mineral. Porous and readily dyed; gentle wear and dry storage are recommended.
- Composition
- Ca2B5SiO9(OH)5
- Hardness
- 3.5 on the Mohs scale · scratch resistance, not toughness
- Birthstone
- No modern month assignment
- 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
- Calm, Evening ritual · Crown chakra. Design vocabulary, not a physical effect.
Pairs well with
Stones that share its meaning.
Amethyst
Quartz · Mohs 7
Calm · Evening ritual · Reflection
Aquamarine
Beryl · Mohs 7.5–8
Calm · Expression
Pearl
Organic gem · Mohs 2.5–4.5
Calm · Connection
Moonstone
Feldspar · Mohs 6–6.5
Evening ritual · ReflectionGem 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.