Image: <bdi><a href="https://www.wikidata.org/wiki/Q126871365" class="extiw" title="d:Q126871365"><span title="photographer from the United States">Shannon Heinle</span></a></bdi> (CC0)
orthorhombiccommonSilicates (Pyroxene group)
Enstatite
MgSiO3
A dark greenish-brown, blocky specimen, approximately 5 cm in size, exhibiting a somewhat fibrous or granular texture.
Enstatite Physical Properties
Mohs Hardness
5.5Crystal System
orthorhombicLuster
vitreousStreak Color
whiteCleavage
Good in two directions at nearly 90 degrees (prismatic)Fracture
unevenSpecific Gravity
3.25Colors
brownish-green, green, gray, white, yellowish-brownTransparency
translucentType Locality
PennsylvaniaMineral Group
Silicates (Pyroxene group)Uses
collector, scientific_studyAssociated Minerals
olivine, plagioclase, chromite, magnetiteRarity
commonGeological Context
Enstatite is found in high-temperature igneous rocks (mafic and ultramafic), metamorphic rocks, and is a common component of stony meteorites.
