Definition of Pegmatites. Meaning of Pegmatites. Synonyms of Pegmatites

Here you will find one or more explanations in English for the word Pegmatites. Also in the bottom left of the page several parts of wikipedia pages related to the word Pegmatites and, of course, Pegmatites synonyms and on the right images related to the word Pegmatites.

Definition of Pegmatites

Pegmatite
Pegmatite Peg"ma*tite, n. [From Gr. ? something fastened together, in allusion to the quartz and feldspar in graphic granite: cf. F. pegmatite. See Pegm.] (Min.) (a) Graphic granite. See under Granite. (b) More generally, a coarse granite occurring as vein material in other rocks.

Meaning of Pegmatites from wikipedia

- intermediate composition and mafic pegmatites are known. Many of the world's largest crystals are found within pegmatites. These include crystals of microcline...
- 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...
- Peak Granite system includes thousands of pegmatites, one of which is the Tin Mountain. The Tin Mountain pegmatite is rich in lithium, but was first mined...
- possesses a hexagonal crystal system. Aquamarine mainly forms in granite pegmatites and hydrothermal veins, and it is a very lengthy process that can take...
- The Harding Pegmatite Mine is a former adit mine that extracted lithium, tantalum, and beryllium from a Precambrian pegmatite sill. It ceased operations...
- is widely distributed in nature. It is found most commonly in granitic pegmatites, but also occurs in mica schists, such as those of the Ural Mountains...
- granites, pegmatites, and schists, and "books" (large individual crystals) of mica several feet across have been found in some pegmatites. Micas are...
- crystallization of pegmatite melt The structural and textural variations within pegmatites The origin and classification of pegmatites Origin of Oxford...
- deposit types: Magmatic deposits are ones who originate directly from magma Pegmatites are very co**** grained, igneous rocks. They crystallize slowly at great...
- gold, silver and copper. Large crystals of quartz are found in magmatic pegmatites. Well-formed crystals may reach several meters in length and weigh hundreds...