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Entry № 186

Erionite

Erionite

A woollen zeolite handled only behind glass.

Chakra

None assigned — collectors' specimen

Element

Air · Earth

Zodiac

None traditional

Erionite

I. The Metaphysical Reading

How the stone has been held.

Erionite is discussed in metaphysical writing chiefly as a warning: it is one of the very few minerals that responsible practitioners refuse to work with directly. It is kept behind glass, and any teaching drawn from it is a teaching about consent, care and the ethical limits of a practice.

Chakra
None assigned — collectors' specimen
Element
Air · Earth
Zodiac
None traditional
Keynote
A woollen zeolite handled only behind glass.

II. The Scientific Reading

What the lattice actually does.

Erionite is a fibrous hexagonal zeolite chemically similar to offretite, formed by the alteration of volcanic tuffs by alkaline groundwater. Its fibres are classified as a Group 1 human carcinogen by the IARC and are the confirmed cause of endemic mesothelioma clusters in Cappadocian villages built from erionite-bearing tuff; specimens must not be handled, cut, polished or worn.

Formula
(Na₂,K₂,Ca)₄Al₈Si₂₈O₇₂·28H₂O (zeolite group)
System
Hexagonal
Hardness
3.5 – 4 (Mohs)
Provenance
USA (Oregon, Nevada), Turkey (Cappadocia), New Zealand

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
(Na₂,K₂,Ca)₄Al₈Si₂₈O₇₂·28H₂O (zeolite group)
Crystal System
Hexagonal
Mohs Hardness
3.5 – 4 (Mohs)
Density
2.02 – 2.13 g/cm³
Refractive Index
1.468 – 1.478
Provenance
USA (Oregon, Nevada), Turkey (Cappadocia), New Zealand
Color Origin
White to pale cream fibrous tufts on volcanic matrix

Related Crystals

Stones that share this lattice

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Erythrite

The magenta warning-flag of buried cobalt.