-
Hedenbergite, CaFeSi2O6, is the iron rich end
member of the
pyroxene group having a
monoclinic crystal system. The
mineral is
extremely rarely found as...
-
composition MgCaSi 2O 6. It
forms complete solid solution series with
hedenbergite (FeCaSi 2O 6) and augite, and
partial solid solutions with orthopyroxene...
- compositions.
There is an
arbitrary separation between augite and the diopside-
hedenbergite (CaMgSi2O6 − CaFeSi2O6)
solid solution. The
divide is
taken at >45 mol...
-
magnesium (Mg) and iron (Fe)
substitution for
calcium ends with
diopside and
hedenbergite respectively—it is
structurally very different, with a
third SiO4−4 tetrahedron...
- FeSiO3
Pigeonite – Ca0.25(Mg,Fe)1.75Si2O6
Diopside –
hedenbergite series Diopside – CaMgSi2O6
Hedenbergite – CaFeSi2O6
Augite – (Ca,Na)(Mg,Fe,Al)(Si,Al)2O6...
- degrees.
Augite is a
solid solution in the
pyroxene group.
Diopside and
hedenbergite are
important endmembers in augite, but
augite can also
contain significant...
-
obsidian (rainbow obsidian) from
Mexico contains oriented nanorods of
hedenbergite,
which cause the
rainbow striping effects by thin-film interference....
- rare
group of
achondrites consisting mostly of Al-Ti
bearing diopside,
hedenbergite, olivine,
anorthite and
troilite with
minor traces of
phosphate and metals...
- Fe2+ and Mg2+
within garnet and clinopyroxene. That
causes pyrope and
hedenbergite (pyroxene) to
change into
almandine and
diopside (pyroxene). Mg 3 Al...
- cancrinite. The
clinopyroxene is
sodic whose composition varies from
hedenbergite to aegirine-augite. This
mineral eventually presents resorption shape...
