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	Mg₂Si₂O₆, (Mg,Fe^II)₂Si₂O₆
Abbreviation	En
IMA Status	Approved (IMA 1988 s.p.)
Classification	Orthopyroxene
Variant	Fe
Related materials	Clinoenstatite, Protoenstatite
Luminescence emitters	Fe, Mn, Unspecified
Reflectance line	Si-O
Search other databases	webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags	Mineral, 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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CSIRO spectra 2015 (Noril'sk-Kharelakh)

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1

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Tarashchan 1978

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Specimens of Enstatite

Name	Owner	Materials	Phase purity	Image	Spectra	Techniques
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.	0	—
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.	0	—
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.	0	—
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.	0	—
M1322 Olivine	CSIRO	Enstatite (34.5%), Forsterite (var. Fe), Olivine	34.5	M1322 Olivine Image of specimen 'M1322 Olivine (Forsterite)' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M1367 Olivine (Forsterite)	CSIRO	Enstatite (27.4%), Forsterite (var. Fe), Olivine	27.4	M1367 Olivine (Forsterite) Image of specimen 'M1367 Olivine (Forsterite)' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M1623 Forsterite / Enstatite	CSIRO	Diopside, Enstatite (23.0%), Forsterite (var. Fe), Iddingsite	23.0	M1623 Forsterite / Enstatite Image of specimen 'M1623 Diopside (Iddingsite)' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
126 Olivine	CSIRO	Enstatite (18.0%), Forsterite (var. 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.	0	—
M1316 Olivine	CSIRO	Diopside, Enstatite (18.0%), Forsterite (var. Fe), Olivine, Quartz	18.0	M1316 Olivine Image of specimen 'M1316 Olivine (Forsterite)' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MES084 Ferrosilite	CSIRO	Enstatite (var. Fe) (15.0%), Fayalite (var. Mg), Ilmenite, Labradorite, Phlogopite (var. Fe), Quartz	15.0	MES084 Ferrosilite Image of specimen 'MES084 Orthoferrosilite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
KH-2	CSIRO	Amphibole, Apatite, Augite, Biotite, Calcite, Chalcopyrite, Chlorapatite, Enstatite, Forsterite, Ilmenite, Magnetite, Pentlandite, Plagioclase, Pyrite, Pyroxene, Pyrrhotite	—	KH-2 Clustered EPMA phase map of the KH-2 specimen (owner: S. Barnes, CSIRO Mineral Resources), from the Kharelakh intrusion, Noril'sk, Russia (C) 2015 CSIRO Process Science and Engineering. All Rights reserved.	26	CL, EDS