Picrite

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Picrite (Min) A dark green igneous rock, consisting largely of chrysolite, with hornblende, augite, biotite, etc.
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Century Dictionary and Cyclopedia
    • n picrite A name proposed for one of the many varieties of olivin-rock, in regard to whose nomenclature lithologists are far from being in accord. Gümbel used the term palæopicrite to designate a rock occurring in the Fichtelgehirge, which, as he believed, consisted originally of olivin, with more or less of enstatite, diopside, augite, and magnetite—at present, however, almost entirely altered to serpentine and chlorite. Rosenbusch considers the palæopicrite of Gümbel to be an olivin-diabase destitute of a feldspathic constituent. See peridotite.
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Chambers's Twentieth Century Dictionary
    • ns Picrite one of the peridotites or olivine-rocks
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Etymology

Webster's Revised Unabridged Dictionary
From Gr. bitter
Chambers's Twentieth Century Dictionary
Gr. pikros, bitter.

Usage

In literature:

These range from acid to ultrabasic types and include granite, augite-diorite, picrite and serpentine.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8" by Various
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