-
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...
- for a
mechanism to make up the "missing"
positive charge. In
jadeite and
aegirine this is
added by the
inclusion of a +3
cation (aluminium and iron(III)...
- The
clinopyroxene is
sodic whose composition varies from
hedenbergite to
aegirine-augite. This
mineral eventually presents resorption shape. The reaction...
-
Crystals of serandite, natrolite, analcime, and
aegirine from Mont Saint-Hilaire, Quebec, Canada...
- of the mineral. The
black spots on some
specimens are
either augite or
aegirine, the
latter occurring in
almost all
charoites since they
commonly grow...
-
Actinolite A****inite
Adamite Adamsite-(Y)
Adelite Admontite Adranosite Aegirine Aegirine-augite
Aenigmatite Aerinite Aerugite Aeschynite-(Ce) Aeschynite-(Nd)...
- Rim group,
dated to 274,000–170,000
years ago
Phonolite lava
flows with
aegirine phenocrysts, of the
Inner Crater group,
which represents the last volcanic...
-
material in general. ****ociate
minerals include: microcline, nepheline,
aegirine, lamprophyllite, lorenzenite, catapleiite, murmanite, arfvedsonite, sodalite...
- (melanite) and
aegirine. The
abundance of
melanite is very
unusual in
igneous rocks,
though some syenites, leucitophyres, and
aegirine-felsites resemble...
- Na2O + K2O > Al2O3, so that some of the
alkali oxides must be
present as
aegirine or
sodic amphibole rather than feldspar. The
chemistry of
volcanic rocks...
