What does enstatite mean?
Enstatite is a mineral in the pyroxene group, recognized by its magnesium-rich composition and typically pale green, brown, or gray coloration. It is an orthopyroxene, meaning a pyroxene with an orthorhombic crystal structure, and it occurs in igneous and metamorphic rocks as well as in meteorites. In planetary science, the mineral is significant because enstatite-rich chondrites provide information about the composition and formation history of asteroids and planetesimals. The word is therefore both a precise mineralogical term and a useful clue to the study of Earth and extraterrestrial materials. It is normally used in technical writing rather than everyday speech, but it is well established in geology. Because its name reflects an association with a standing or stationary condition, enstatite also illustrates how descriptive Greek roots became part of modern scientific vocabulary.
nounA magnesium-rich pyroxene mineral that is typically pale green, brown, or gray and occurs in igneous and metamorphic rocks, as well as in meteorites. It is an orthopyroxene with an orthorhombic crystal structure.
- A magnesium-rich pyroxene mineral with an orthorhombic crystal structure, commonly found in igneous and metamorphic rocks and in meteorites.
"The meteorite contains abundant grains of enstatite alongside olivine and metallic iron."
"The laboratory analysis identified the inclusion as enstatite, an orthopyroxene rich in magnesium."
"Enstatite grains in the meteorite preserve evidence of the conditions under which the parent body formed."
The standard plural refers to individual grains, crystals, or other pieces of the mineral.
"Tiny enstatites were separated from the meteorite for further analysis."
Its abundance in certain meteorites helped give the enstatite chondrites their name.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of enstatite
The name derives from Greek enstatos, meaning “standing” or “standing still,” and was formed through the mineral suffix -ite; it entered English through German Enstatit. Its root is ultimately related to the Indo-European root for “stand,” which also underlies words such as stasis, static, and status.
How enstatite is actually used
Technical and formal, used chiefly in geology, mineralogy, and planetary science. The name is usually lowercase, and the standard plural is enstatites.
Easily confused with enstatite
Eclogite is a high-pressure metamorphic rock, whereas enstatite is a pyroxene mineral.