Emerald

Green beryl coloured by chromium and/or vanadium. Fissures and clarity-enhancement treatments can make it delicate.

Composition: Be3Al2Si6O18
Hardness: 7.5–8 on the Mohs scale · scratch resistance, not toughness
Birthstone: May
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: Taurus
Symbolic: Connection · Heart chakra. Design vocabulary, not a physical effect.

Mineral reference ↗

Pairs well with

Stones that share its meaning.

Pearl

Organic gem · Mohs 2.5–4.5

Calm · Connection

Ruby

Corundum · Mohs 9

Confidence · Connection

Peridot

Olivine · Mohs 6.5–7

Confidence · Connection

Tourmaline

Tourmaline group · Mohs 7–7.5

Connection · Creativity

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.