- Nepheline, also
called nephelite (from
Ancient Gr**** νεφέλη (nephélē) 'cloud'), is a rock-forming
mineral in the
feldspathoid group – a silica-undersaturated...
-
Nepheline syenite is a
holocrystalline plutonic rock that
consists largely of
nepheline and
alkali feldspar. The
rocks are
mostly pale colored, grey or...
- Hill)
Island Arc. Aurousseau, M, and HS
Washington (1922) The
Nephelite Syenite and
Nephelite Porphyry of Beemerville, New Jersey. The
Journal of Geology...
- if from
deposits in the
United States—anorthosite, clay, laterite, and
nephelite syenite (to the
extent that
alumina and
aluminum compounds are extracted...
- gravel, magnesite, uranium, feldspar, topaz, mica, granite, aquamarine,
nephelite, and salt
being extracted. As of 2010[update], the Gombe-Biu-Mubi road...
-
erosional remnant of a late
Oligocene volcano and is
composed of
basalt nephelites containing olivine granules, amphibole,
leucite and –
among others – magnetite...
-
October 17, 2015. M.
Aurousseau and H.S. Washington, "The
Nephelite Syenite and
Nephelite Porphyry of Beemerville, New Jersey", The
Journal of Geology...
- zeolite, scoria). In addition,
different types of basalts, granites,
nephelite syenite, and
marble make up a
large percent of
resources in Armenia. While...
- †Monopleurophyllum Andreánszky (leaves) †Negundoides
Lesquereux (leaves) †
Nephelites Deane (leaves) †Palaealectryon Reid &
Chandler (seeds) †Palaeallophylus...
