- tetrahedra.
Pyroxenes that
crystallize in the
monoclinic system are
known as
clinopyroxenes and
those that
crystallize in the
orthorhombic system are
known as orthopyroxenes...
-
Clinopyroxene thermobarometry is a
scientific method that uses the
mineral clinopyroxene to
determine the
temperature and
pressure of the
magma when the...
-
equal amounts of
clinopyroxene and orthopyroxene) or
olivine gabbro (for a
gabbro containing significant olivine, but
almost no
clinopyroxene or hornblende)...
-
Biotite is
generally of low
content and the main
mafic minerals are
clinopyroxene (±) and
amphibole (±). The
macroscopic colour is grey,
being little...
- or
aphanitic igneous rock made up
almost entirely of
nepheline and
clinopyroxene (variety augite). If
olivine is present, the rock may be classified...
- Aegirine, an iron-sodium
clinopyroxene, is part of the
inosilicate subclass....
- Nephelinite –
Igneous rock made up
almost entirely of
nepheline and
clinopyroxene – A silica-undersaturated
plutonic rock with >90%
nepheline Norite –...
-
presence of
phenocrysts of mica and/or
amphibole together with
lesser clinopyroxene and/or
melilite set in a groundm****
which may
consist (either singly...
-
Omphacite is a
member of the
clinopyroxene group of
silicate minerals with formula: (Ca, Na)(Mg, Fe2+, Al)Si2O6. It is a
variably deep to pale
green or...
-
Upper Mantle is
mainly composed of
olivine (~60
volume percent (vol%)),
clinopyroxene, orthopyroxene, and garnet.
Pyroxene would gradually dissolved into...
