- nesosilicate, with
formula Ca3Fe2Si3O12.
Andradite includes three varieties:
Melanite:
Black in
color due to
limited substitution of
titanium for iron. Also...
- nosean;
other minerals which make
their appearance with some
frequency are
melanite,
garnet and melilite. The
plutonic leucite-bearing
rocks are
leucite syenite...
-
Borolanite is an
historical petrological name for a pyroxene-
melanite bearing nepheline syenite variety which contains nepheline-alkali
feldspar pseudomorphs...
-
Mariposite (variety of phengite/muscovite)
Meerschaum (variety of sepiolite)
Melanite (variety of andradite)
Menilite (variety of opal)
Milky quartz (a cloudy...
- brown,
green or black. The
recognized varieties are
demantoid (green),
melanite (black), and
topazolite (yellow or green).
Andradite is
found in skarns...
-
Pyralspite Almandine Pyrope Spessartine Ugrandite Andradite Demantoid Melanite Topazolite Grossular Hessonite Hydrogrossular Tsavorite Uvarovite Almandine-pyrope...
- discovered. Its
chemical formula is Ca2BeSi2O7. It
occurs mostly in
skarns with
melanite adjacent to an
alkali syenite and has no
economic value. Its
crystals are...
- 20% 214 233 195 H130L90C20 Bean
White 130° 93% 5% 235 240 228 H130L93C05
Melanite Black Green 140° 20% 5% 40 46 39 H140L20C05
Mountain Range Green 140° 20%...
-
costly of the garnets, with
three of its varieties—topazolite (yellow),
melanite (black), and
demantoid (green)—sometimes seen in jewelry.
Demantoid (literally...
- calcite,
titanite and schorlomite, a dark-brown
titaniferous variety of
melanite-garnet. This rock is the
plutonic and holo-crystalline
analogue of the...
