- A
pegmatite is an
igneous rock
showing a very co**** texture, with
large interlocking crystals usually greater in size than 1 cm (0.4 in) and sometimes...
- the
eastern edge by the Blue
Ridge Front. The
pegmatites intruded into the Ashe Formation. The
pegmatites and
country rock are part of the
Spruce Pine...
- granites,
pegmatites, and schists, and "books" (large
individual crystals) of mica
several feet
across have been
found in some
pegmatites.
Micas are...
-
Lepidolite is
found with
other lithium-bearing minerals, such as spodumene, in
pegmatite bodies. It has also been
found in high-temperature
quartz veins, greisens...
-
aplites form in
close ****ociation with
pegmatites,
which are
otherwise uncommon in granites.
These aplite-
pegmatite sheet complexes may show fine-scale banding...
- In
southern Greenland, the
Illimaussaq alkaline complex consists of
pegmatites such as nepheline,
syenites (especially
kakortokite or naujaite) and sodalite...
-
Turkey Roost is a 7,730 foot (2,360 m)
precambrian pegmatite dome in
northern Larimer County in the US
state of Colorado. "GNIS
Detail - [Turkey Roost]"...
-
possesses a
hexagonal crystal system.
Aquamarine mainly forms in
granite pegmatites and
hydrothermal veins, and it is a very
lengthy process that can take...
- lithium, tin
Pilbara Craton Archean Environment: magmatic, group:
pegmatite, type: LCT
pegmatite Pilgangoora (Altura)
Pilgangoora (Altura Mining)
Western Australia...
- The Tin
Mountain pegmatite is an
igneous intrusion located in the
southern Black Hills,
South Dakota. It is a part of the
Harney Peak
Granite dome that...
