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enstatite

Pyroxene mineral

Instance of: mineral species
1
Sources
1.Stated in The IMA List of Minerals (March 2019)
View statement on Wikidata ↗
Subclass of: pyroxene
1
Sources
1.Stated in Fleischer’s Glossary of Mineral Species 2014
View statement on Wikidata ↗
, mineralogy

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Enstatite is a mineral; the magnesium endmember of the pyroxene silicate mineral series enstatite (MgSiO3) – ferrosilite (FeSiO3). The magnesium rich members of the solid solution series are common rock-forming minerals found in igneous and metamorphic rocks. The intermediate composition, (Mg,Fe)SiO3, has historically been known as hypersthene, although this name has been formally abandoned and replaced by orthopyroxene. When determined petrographically or chemically the composition is given as relative proportions of enstatite (En) and ferrosilite (Fs) (e.g., En80Fs20).

Overview

All data

35 statements · 49% with external sources · numbers in brackets are citations

Formula: Mg₂Si₂O₆
1
Sources
1.Stated in The IMA List of Minerals (November 2022)
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IMA status and/or rank: approved mineral and/or valid name (A)
1
Sources
1.Stated in The IMA List of Minerals (February 2013)
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Nickel-Strunz 9th edition (updated 2009): 9.DA.05
1
Sources
1.Stated in IMA/CNMNC List of Mineral Names (March 2009)
View statement on Wikidata ↗
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 9.DA.05
1
Sources
1.Stated in IMA/CNMNC List of Mineral Names (March 2009)
View statement on Wikidata ↗
Space group: space group 61
1
Sources
1.Stated in mineralienatlas.de
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Crystal system: orthorhombic crystal system
1
Sources
1.Stated in mineralienatlas.de
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Solid solution series with: ferrosilite
1
Sources
1.Stated in MinDat
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Named after: adversary language: Ancient Greek · object named as: "enstates"
1
Sources
1.Stated in Handbook of Mineralogy
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Streak color: grey
IMA Mineral Symbol: En
1
Sources
1.Stated in IMA–CNMNC approved mineral symbols
View statement on Wikidata ↗
Mohs' hardness: 5.5
Density: 3.2 g/cm³
Strunz 8th edition (series ID, updated): VIII/D.02
1
Sources
1.Stated in Mineralogische Tabellen : Eine Klassifizierung der Mineralien auf kristallchemischer Grundlage, mit einer Einfuhrung in die Kristallchemie (1982)
View statement on Wikidata ↗
Point group: orthorhombic-bipyramidal

On other databases

18 identifiers linking enstatite across the web's reference databases

Data quality

statements

49%

externally sourced

Source last edited August 23, 2026. AIDB refreshes this page daily.

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AIDB. (2026). enstatite (Q423010). Retrieved from https://aidb.si/e/enstatite-Q423010