edingtonite

Edingtonite is a white, gray, brown, colorless, pink or yellow zeolite mineral. Its chemical formula is BaAl2Si3O10·4H2O. It has varieties with tetragonal, orthorhombic or triclinic crystals.

Key facts

Mineral.name: Edingtonite
Mineral.image: Edingtonite-120476.jpg
Mineral.imagesize: 260px
Mineral.caption: Edingtonite from Ice River Alkaline Complex, Golden Mining Division, British Columbia, Canada
Mineral.category: Tectosilicate minerals
Mineral.group: Zeolite group
Mineral.formula: BaAl2Si3O10·4H2O
Mineral.IMAsymbol: Edi
Mineral.strunz: 9.GA.15
Mineral.color: White, gray, pink
Mineral.habit: Prismatic pseudotetragonal crystals; massive.
Mineral.system: Orthorhombic
Mineral.twinning: On [110] and [001]
Mineral.cleavage: Perfect on [110]
Mineral.mohs: 4 - 4.5
Mineral.gravity: 2.73 - 2.78
Mineral.opticalprop: Biaxial (-)
Mineral.refractive: nα = 1.538 nβ = 1.549 nγ = 1.554

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Wikidata facts

Image: Edingtonite-120476.jpg

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Nickel-Strunz 9th edition (updated 2009): 9.GA.15
Commons category: Edingtonite
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 9.GA.15
IMA Mineral Symbol: Edi
chemical formula: Ba(Si₃Al₂)O₁₀·4H₂O
Strunz 8th edition (series ID, updated): VIII/F.10

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Edingtonite is a white, gray, brown, colorless, pink or yellow zeolite mineral. Its chemical formula is BaAl2Si3O10·4H2O. It has varieties with tetragonal, orthorhombic or triclinic crystals.

The mineral occurs within cavities in nepheline syenites, carbonatites, in hydrothermal veins and various mafic rocks. It occurs associated with thomsonite, analcime, natrolite, harmotome, brewsterite, prehnite and calcite.