Which chakra does Green Opal work with?

Green Opal is traditionally associated with the Heart chakra, the element of Water · Earth, and the sign Cancer · Libra.

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Entry № 220

Green Opal

Q: What is Green Opal made of?

Green Opal has the chemical formula SiO₂·nH₂O with trace Ni or celadonite inclusions, crystallises in the amorphous system and measures 5.5 – 6.5 (Mohs) on the Mohs scale. Green opal is a common (non-precious) opal — hydrated amorphous silica without the ordered silica-sphere lattice that produces play-of-colour. Its green tint comes from either trace nickel substituting in the silica gel or included flakes of celadonite, a green iron-rich mica. Peruvian and Madagascan material is among the best-known.

Common Opal (var. Green)

Opal without fire, coloured by nickel or celadonite instead.

Chakra

Heart

Element

Water · Earth

Zodiac

Cancer · Libra

I. The Metaphysical Reading

How the stone has been held.

Green opal is worked with as a stone of gentle emotional renewal, kept close during grief that is being metabolised slowly. Practitioners hold that it works by softening rather than accelerating.

Chakra: Heart
Element: Water · Earth
Zodiac: Cancer · Libra
Keynote: Opal without fire, coloured by nickel or celadonite instead.

II. The Scientific Reading

What the lattice actually does.

Green opal is a common (non-precious) opal — hydrated amorphous silica without the ordered silica-sphere lattice that produces play-of-colour. Its green tint comes from either trace nickel substituting in the silica gel or included flakes of celadonite, a green iron-rich mica. Peruvian and Madagascan material is among the best-known.

Formula: SiO₂·nH₂O with trace Ni or celadonite inclusions
System: Amorphous
Hardness: 5.5 – 6.5 (Mohs)
Provenance: Peru, Madagascar, USA (Oregon), Tanzania, Indonesia