What does hypersthene mean?
Hypersthene is a mineral name for an iron-bearing member of the orthopyroxene group. It is a magnesium iron silicate and can occur as dark, lustrous crystals or grains in igneous and metamorphic rocks. Mineralogists distinguish it from the more magnesium-rich pyroxene enstatite chiefly by its greater iron content. The word is principally encountered in geology, petrology, and mineral collecting rather than in ordinary conversation. Historically, hypersthene was valued for its hardness and distinctive appearance, and its name combines Greek elements meaning “over” or “excessive” with “strength.” Although the term is less prominent in modern specialist nomenclature than the broader words pyroxene and orthopyroxene, it remains important for describing certain dark ferromagnesian minerals and is especially useful in the study of the composition and history of rocks.
nounAn iron-bearing magnesium silicate mineral belonging to the orthopyroxene group, occurring in igneous and metamorphic rocks.
- An iron-bearing magnesium silicate mineral in the orthopyroxene group, commonly found as dark crystals or grains in igneous and metamorphic rocks.
"The geologist identified dark grains of hypersthene in the basaltic rock."
"A polished sample of hypersthene glittered with metallic sheen."
"Under the polarizing microscope, the mineral grains were identified as hypersthene."
Usually used in plural when referring to multiple crystals, grains, or mineral specimens.
"The thin section revealed several hyperstones embedded in a finer-grained matrix."
Hypersthene combines the Greek elements for “over” and “strength,” a fitting name for a mineral prized for its hardness.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of hypersthene
The name hypersthene comes from Greek hyper, meaning “over” or “excessive,” and sthene, meaning “strength” or “force.” It was applied to a comparatively hard mineral in the pyroxene group. The same Greek root underlying sthene also appears in English words such as sthenic and asthenic.
How hypersthene is actually used
This is a technical term used chiefly in geology, mineralogy, and petrology. It should not be used as a general synonym for pyroxene, which is a broader mineral group.
Easily confused with hypersthene
Both are orthopyroxene minerals, but enstatite is magnesium-rich and iron-poor, whereas hypersthene contains a greater proportion of iron.