-
Aegirine is a
member of the
clinopyroxene group of
inosilicate minerals. It is the
sodium endmember of the aegirine–augite series. It has the chemical...
- Dark
inclusions of
aegerine in light-green apatite...
- and pot****ium are in
excess of that
needed for feldspar. The
presence of
aegerine (sodium pyroxene) and
riebeckite (sodium amphibole) are
indicative of peralkaline...
- groundm**** with fine-to co****-grained
megacrysts of biotite, diopside,
aegerine-augite, orthoclase, magnetite, apatite, and nepheline.
Rutan Hill and the...
- and olivine.
Shonkinite is also used for
mafic nepheline syenite with
aegerine-augite as the pyroxene, and with the
addition of
plagioclase (andesine...
-
Khibiny M****if, Kola Peninsula,
Murmanskaja Oblast',
Northern Region, in an
aegerine-natrolite-microcline vein in foyaite, ****ociated with aegirine, anatase...
- In
addition to
analcime and melanite,
common minerals include sanidine,
aegerine-augite and chlorite. Blairmorite, a rare analcime-rich rock-type named...
- in
Odichincha m****if in ****ociation with nepheline,
alkaline feldspar,
aegerine and lamprophyllite.
Admixtures in
taseqite include pot****ium and manganese...
