انستاتیت
Sign in to saveEnstatite 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, , 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).
Key facts
- Mineral.name
- Enstatite
- Mineral.category
- Inosilicate minerals (single chain)
- Mineral.group
- Pyroxene group, orthopyroxene subgroup
- Mineral.image
- Enstatite-202036.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- MgSiO3
- Mineral.IMAsymbol
- En
- Mineral.strunz
- 9.DA.05
- Mineral.system
- Orthorhombic
- Mineral.class
- Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
- Mineral.symmetry
- Pbca
- Mineral.unit cell
- a = 18.23, b = 8.84 c = 5.19 [Å]; Z = 8
- Mineral.color
- White, grey, green, yellow or brown - colorless in thin section.
- Mineral.habit
- Prismatic crystals, commonly lamellar, fibrous, or massive
- Mineral.twinning
- Simple and lamellar on [100]
- Mineral.cleavage
- Good/distinct on [210]
- Mineral.fracture
- Uneven
- Mineral.tenacity
- Brittle
via Wikipedia infobox
Wikidata facts
- Subclass of
- mineralogy
- Named after
- adversary
- Image
- Enstatite-USGS-BYU492.jpg
Show 11 more facts
- chemical formula
- Mg₂Si₂O₆
- Commons category
- Enstatite
- Nickel-Strunz 9th edition (updated 2009)
- 9.DA.05
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.DA.05
- crystal system
- orthorhombic crystal system
- solid solution series with
- ferrosilite
- streak color
- grey
- IMA Mineral Symbol
- En
- Mohs' hardness
- 5.5
- density
- 3.20
- Strunz 8th edition (series ID, updated)
- VIII/D.02
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