-
Websterite is
ultramafic igneous rock, a type of
pyroxenite that has less than 5%
olivine and
roughly equal proportions of
orthopyroxene and clinopyroxene...
- Vitrophyre – Gl****y
volcanic rock - Gl****y
igneous rock with
phenocrysts Websterite –
Ultramafic and
ultrabasic rock – A type of pyroxenite,
composed of clinoproxene...
-
Pyroxenites are
classified into clinopyroxenites, orthopyroxenites, and the
websterites which contain both
types of
pyroxenes (see
diagram below).
Closely allied...
- for its
aluminium content. It is also
known as
alley stone,
halite and
websterite (named
after Orcadian geologist Thomas Webster).
Aluminite is used by...
-
Benmoreite Trachybasalt Hawaiite Trachyte Troctolite Trondhjemite Tuff
Websterite Wehrlite Sedimentary rock
Argillite Arkose Banded iron
formation Breccia...
- harzburgite)
garnet inclusions have less CaO.
Eclogite and
peridotite are the two main
parental mantle rocks and
wehrlite and
websterite are
minor types....
- Uraninite: Joachimsthal, Austria-Hungary (now Jáchymov,
Czech Republic)
Websterite:
Webster in
North Carolina. Widgiemoolthalite: Widgiemooltha, Western...
- 089.36.00 W. The
complex includes gabbro, pyroxenite,
gabbronorite and
websterite intrusive into
granitic gneiss country rock. The ore
minerals occur within...
-
Stikinia terrane. They
consist of lherzolite, harzburgite, wehrlite, dunite,
websterite and
garnet composed pyroxenite. The
highest and
lowest temperatures recorded...
- amphibole-containing peridotite,
olivine and
spinel pyroxenite, and
websterite. In general, the
composition resembles that of
other Sudanese-Egyptian...
