from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A green, brown, or black splintery, cleavable pyroxene mineral, essentially (Fe,Mg)2Si2O6.
from The Century Dictionary.
- noun A mineral related to pyroxene, but orthorhombic in crystallization.
from the GNU version of the Collaborative International Dictionary of English.
- noun (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.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy An
inosilicatethat is an orthorhombic pyroxene
from The American Heritage® Dictionary of the English Language, 4th Edition
Bronzite is sometimes cut and polished, usually in convex forms, for small ornamental objects, but its use for this purpose is less extensive than that of hypersthene.
BRONZITE, a member of the pyroxene group of minerals, belonging with enstatite and hypersthene to the orthorhombic series of the group.
Various mineral localities occur throughout the county, of which some of the most important occur on the shore at Portsoy, as for example the gabbro masses in Portsoy Bay with enstatite, hypersthene and labradorite, the graphic granite with microcline, muscovite and tourmaline at East Head, the chiastolite-schist west of the marble quarry, the mottled serpentine with strings of chrysotile.
The shape is usually spheroidal, and the material hypersthene (a hard and close-grained bluish granite) or diorite, greenstone-trap blackened by sun and rain.
To the Gold Coast for Gold A Personal Narrative in Two Volumes.—Volume I Richard Francis Burton 1855
Their metallic appearance arises from their being composed of a mineral called hypersthene.
A Yacht Voyage Round England William Henry Giles Kingston 1847
'Hypersthene rock' is a granular mixture of labradorite and hypersthene.
COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 Alexander von Humboldt 1814
a metallic sheen or "schiller," which is even more pronounced in hypersthene than in bronzite.