• Webster's Revised Unabridged Dictionary
    • n Hypersthene hī"pẽr*sthēn (Min) An orthorhombic mineral of the pyroxene group, of a grayish or greenish black color, often with a peculiar bronzelike luster (schiller) on the cleavage surface.
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Century Dictionary and Cyclopedia
    • n hypersthene A mineral related to pyroxene, but orthorhombic in crystallization. It is a silicate of iron and magnesium. It was early called Labrador hornblende. Its color is between grayish and greenish black, but often with a peculiar copper-red luster or shimmer on the cleavage-surface, due to the presence of minute inclusions. It is usually found foliated and massive.
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Chambers's Twentieth Century Dictionary
    • n Hypersthene hī-per-sthēn′ a rock-forming mineral which crystallises in orthorhombic forms, an anhydrous magnesian silicate, generally dark green or raven-black in colour
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Webster's Revised Unabridged Dictionary
Gr. "ype`r over + sqe`nos strength: cf. F. hyperstène,
Chambers's Twentieth Century Dictionary
Gr. hyper; above, sthenos, strength.


In literature:

BRONZITE, a member of the pyroxene group of minerals, belonging with enstatite and hypersthene to the orthorhombic series of the group.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3" by Various
Their metallic appearance arises from their being composed of a mineral called hypersthene.
"A Yacht Voyage Round England" by W.H.G. Kingston
Hypersthene occurs also, usually replacing olivine.
"Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3" by Various
Hypersthene (or bronzite) is characteristic of another group.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3" by Various
They rarely contain olivine, but pleochroic hypersthene is by no means rare in them (hypersthene-dolerites).
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6" by Various
Some geologists consider it a greenstone, in which hypersthene replaces hornblende.
"A Manual of Elementary Geology" by Charles Lyell
Schillerstein, or schiller spar is a similar product of the allied but rhombic mineral hypersthene.
"The New Gresham Encyclopedia" by Various
Hypersthene and scapolite both may occur in these rocks and they are sometimes garnetiferous.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2" by Various

In science:

They successfully retrieved many different kinds of meteorites including enstatite chondrites, hypersthene achondrites, type III carbonaceous chondrites and bronzite chondrite in the Yamato region (Nagata 1975).
The History of Astrophysics in Antarctica