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Chabazite identification and geology

Chabazite mineral reference specimen

Zeolite mineral forming distinctive rhombohedral crystals in basalt cavities. Used in water treatment and gas separation. Color: White, pink, yellow, colorless. Luster: Vitreous. Streak: White. Cleavage: Poor. Hardness: 4-5. Transparency: Transparent to translucent. Crystal system: Trigonal. Chemical formula: CaAl₂Si₄O₁₂·6H₂O. Specific gravity: 2.05-2.15. Formation: Forms in cavities in basaltic lavas from late-stage hydrothermal fluids. Common geological settings: India, Iceland, Italy, USA; found in vesicles of basaltic lavas. Common look-alikes and related entries: Stilbite, Heulandite, Calcite.

Sources, scope & corrections

These authoritative resources support category-level nomenclature, terminology, identification methods, and safety. When a specimen-specific safety warning appears, the public-health source listed here directly supports that precaution. They are not line-by-line citations for every other property on this entry, and natural specimens vary.

Editorial owner
GeoMiner
Last updated
2026-03-30T14:37:13.844658+00:00
Review status
Published; not independently peer-reviewed
  • IMA–CNMNC List of Mineral Names — International Mineralogical Association. Official mineral-name, nomenclature, and classification records.
  • Mineral ID Key — Mineralogical Society of America. Physical-property identification methods, repeat-testing guidance, and limitations.

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Common questions

What is Chabazite?
Zeolite mineral forming distinctive rhombohedral crystals in basalt cavities. Used in water treatment and gas separation.
How can you identify Chabazite?
Compare several properties rather than relying on colour alone. This entry records colour: White, pink, yellow, colorless; lustre: Vitreous; streak: White; Mohs hardness: 4-5; cleavage: Poor; crystal system: Trigonal; transparency: Transparent to translucent. Confirm an important identification with additional field tests or qualified laboratory work.
How does Chabazite form?
Forms in cavities in basaltic lavas from late-stage hydrothermal fluids.
Where is Chabazite commonly found?
India, Iceland, Italy, USA; found in vesicles of basaltic lavas.
What is Chabazite commonly confused with?
Chabazite may be confused with Stilbite, Heulandite, Calcite. Compare multiple diagnostic properties because colour and surface appearance can overlap.

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