-
pyroxenes (commonly
abbreviated Px) are a
group of
important rock-forming
inosilicate minerals found in many
igneous and
metamorphic rocks.
Pyroxenes...
- co****-grained
igneous rock
consisting mostly of the
silicate minerals olivine and
pyroxene.
Peridotite is ultramafic, as the rock
contains less than 45% silica. It...
- is an
ultramafic igneous rock
consisting essentially of
minerals of the
pyroxene group, such as augite, diopside, hypersthene,
bronzite or enstatite. Pyroxenites...
- in space; most
chondrules are rich in the
silicate minerals olivine and
pyroxene.
Chondrites also
contain refractory inclusions (including Ca–Al inclusions)...
- each of
pyroxene or hornblende.
Hornblende gabbro is
composed almost entirely of
plagioclase and hornblende, with less than 5% each of
pyroxene or olivine...
- garnets, vesuvianite, diopside, tremolite, epidote,
plagioclase feldspar,
pyroxene and calcite. It is
named after the
English chemist and
mineralogist William...
- dark in color, and
common rock-forming
mafic minerals include olivine,
pyroxene, amphibole, and biotite.
Common mafic rocks include basalt,
diabase and...
- The
pyroxene pallasite grouplet is a
subdivision of the
pallasite meteorites (stony-irons). The
grouplet is
named "
pyroxene pallasites"
because they are...
-
clinochlore chlorite, talc, serpentine-antigorite
minerals or
metamorphic pyroxene. Magnesium-rich ****mingtonite can also
coexist with anthophyllite. ****mingtonite...
- and
general characteristics they are
similar to the
pyroxenes. The
chief differences from
pyroxenes are that (i)
amphiboles contain essential hydroxyl...
