Smoky quartz

Brown to grey quartz coloured by irradiation-related colour centres. The trade term 'smoky topaz' usually refers to quartz, not topaz.

Composition: SiO2
Hardness: 7 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.
Paired with: Ox years · Goat years · Pig years · Earth element
Symbolic: Grounding, Evening ritual · Root chakra. Design vocabulary, not a physical effect.

Mineral reference ↗

Pairs well with

Stones that share its meaning.

Garnet

Garnet group · Mohs 6.5–7.5

Grounding · Confidence

Amethyst

Quartz · Mohs 7

Calm · Evening ritual · Reflection

Bloodstone

Chalcedony · Mohs 6.5–7

Grounding · Confidence

Moonstone

Feldspar · Mohs 6–6.5

Evening ritual · Reflection

Gem 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.