-
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...
-
garnet (almandine-pyrope)
hosted in a
matrix of sodium-rich
pyroxene (
omphacite).
Accessory minerals include kyanite, rutile, quartz, lawsonite, coesite...
- than 20 mol.% calcium,
magnesium or iron(II)
components are
known as
omphacite and aegirine-augite. With 80% or more of
these components the pyroxene...
- and/or orthopyroxene.
There is also a
miscibility gap
between augite and
omphacite, but this gap
occurs at
higher temperatures.
There are no
industrial or...
- In metabasites:
omphacite +
garnet ± kyanite, quartz, hornblende,
zoisite In metagranodiorite:
quartz +
phengite + jadeite/
omphacite +
garnet In metapelites:...
- aluminium.
Omphacite is
intermediate in
composition between jadeite and diopside. However,
there is not a true
solid solution series, as
omphacite has its...
-
chromian pyrope,
chromian spinel, ilmenite, perovskite, zircon, diamond,
omphacite, rutile,
carbonates and micas. It has been
reported from the Red Ledge...
-
Belgium (flint) Plancher-les-Mines,
France (pelite)
Aosta Valley,
Italy (
omphacite).
Metal axes are
still produced and in use
today in
parts of Papua, Indonesia...
-
Greenstone artifacts may be made of greenschist, chlorastrolite, serpentine,
omphacite, chrysoprase, olivine, nephrite,
chloromelanite among other green-hued...
-
Oldhamite Olgite Olivenite Olivine (a
group of
silicate minerals)
Olmiite Omphacite Oneillite Oosterboschite Oppenheimerite Ordóñezite
Oregonite Orpiment...
