Enstatite : CSIRO Spectroscopy Database

Enstatite [ Mg₂Si₂O₆ ]

Image of Enstatite

Enstatite specimen from Tanzania

Photo by Greg Polley, via Smithsonian National Museum of Natural History

Material properties

Formulas	(Mg,Fe^II)₂Si₂O₆, Mg₂Si₂O₆
Abbreviation	En
Variant	Fe
Classification	Orthopyroxene
Luminescence emitters	Fe, Mn, Si-O, Unspecified
IMA Status	Approved (IMA 1988 s.p.)
Search other databases	webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Related materials	Clinoenstatite, Protoenstatite
Tags	Mineral, Silicate, Silicate

Composition

Element	Atoms
Si	2
O	6
Mg	2
Total:	10

References for Enstatite

Derham et al. 1964

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Laukamp et al. 2021

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Leverenz 1968, p230

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Tarashchan 1978

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Specimens of Enstatite

Name	Owner	Materials	Phase purity	Image
MT8329 Enstatite	CSIRO	Enstatite (97.9%)	97.9	MT8329 Enstatite Image of Enstatite [ Mg2Si2O6 ] in specimen 'MT8329 Enstatite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
MES041 Enstatite	CSIRO	Clinoenstatite, Enstatite (93.0%), Spinel peridotite	93.0	MES041 Enstatite Image of Enstatite and Clinoenstatite in specimen 'MES041 Enstatite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
M2469 Enstatite	CSIRO	Clinoenstatite, Enstatite (81.0%), Lizardite, Talc	81.0	M2469 Enstatite Image of Enstatite, Clinoenstatite, Lizardite and Talc in specimen 'M2469 Enstatite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
NR41 Enstatite	CSIRO	Clinoenstatite, Enstatite (73.3%), Lizardite, Talc	73.3	NR41 Enstatite Image of specimen 'NR41 Enstatite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
M1322 Olivine	CSIRO	Enstatite (34.5%), Forsterite, Fe, Olivine	34.5	M1322 Olivine Image of specimen 'M1322 Olivine (Forsterite)' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
M1367 Olivine (Forsterite)	CSIRO	Enstatite (27.4%), Forsterite, Fe, Olivine	27.4	M1367 Olivine (Forsterite) Image of specimen 'M1367 Olivine (Forsterite)' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
M1623 Forsterite / Enstatite	CSIRO	Diopside, Enstatite (23.0%), Forsterite, Fe, Iddingsite	23.0	M1623 Forsterite / Enstatite Image of specimen 'M1623 Diopside (Iddingsite)' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
126 Olivine	CSIRO	Enstatite (18.0%), Forsterite, Fe, Olivine, Quartz	18.0	126 Olivine Image of Enstatite, Forsterite (var. Fe) and Quartz in specimen '126 Olivine' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.
M1316 Olivine	CSIRO	Diopside, Enstatite (18.0%), Forsterite, Fe, Olivine, Quartz	18.0	M1316 Olivine Image of specimen 'M1316 Olivine (Forsterite)' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
MES084 Ferrosilite	CSIRO	Enstatite, Fe (15.0%), Fayalite, Mg, Ilmenite, Labradorite, Phlogopite, Fe, Quartz	15.0	MES084 Ferrosilite Image of specimen 'MES084 Orthoferrosilite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.