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Elkahia gemstone emblemElkahia GemstoneEST. 2026 · QATAR
ClMINERAL

Mineral atlas / Species record

Clinozoisite

Ca₂Al₃(Si₂O₇)(SiO₄)O(OH)
Approved
Chemical formula (IMA record)
Ca₂Al₃(Si₂O₇)(SiO₄)O(OH)
Recognition status
Approved
Nomenclature / special-procedure record
2006 s.p.
First-discovery country (IMA)
Austria
Crystal system
Not supplied in the IMA master list
Mohs hardness
Not supplied in the IMA master list
Measured density
Not supplied in the IMA master list
Historical discoverer
Not supplied in the IMA master list

How it occurs in nature

This species has a documented chemistry and recognition record in the IMA catalog. The master list does not describe its formation environment. Consult the cited mineral-description studies below for species-specific occurrence and geological context; these cannot be inferred reliably from the formula alone.

Discovery & scientific record

The country refers to the master list’s first-discovery country, using modern borders. It is not a list of all deposits. A question mark is retained when the source is uncertain; a special-procedure date can refer to redefinition rather than discovery.

Original reference: Zeitschrift für Krystallographie 26 (1896), 156

Additional reference: European Journal of Mineralogy 23 (2011), 731

IMA-CNMNC master list · page 47 ↗

RRUFF · further mineral research ↗ · Handbook of Mineralogy ↗

Catalog coverage and profile depth are different: every species in the cited IMA edition is indexed, but this edition does not provide every physical property or a full discovery narrative. The archive leaves those gaps explicit. Formulae and references are adapted from the IMA list under CC BY-SA 3.0; consult the original page for authoritative typography.

Reference snapshot: September 2026. Source dates and uncertainties are retained in the record.