A pegmatite is an igneous rock with a very coarse texture, its interlocking crystals usually larger than one centimeter and sometimes larger than a meter. Most pegmatites have a granitic composition dominated by quartz, feldspar and mica, and they form from the last fluid fraction of a large crystallizing magma body. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Formation ClassIgneous, intrusive (very coarse-grained, formed from the last fluid fraction of a crystallizing magma body) 1 Classification
Classification UseOre or Metal Extraction 1 Connections
Associated With
Apatite named among the characteristic minerals of complex (rare-element) pegmatites.
Source Pegmatite (Wikipedia)
Corundum's own page states it occurs as large crystals in pegmatites.
Source Corundum (Wikipedia)
Feldspar named as one of the three dominant minerals of most pegmatites.
Source Pegmatite (Wikipedia)
Fluorite named among the characteristic minerals of complex (rare-element) pegmatites.
Source Pegmatite (Wikipedia)
Mica named as one of the three dominant minerals of most pegmatites.
Source Pegmatite (Wikipedia)
Quartz named as one of the three dominant minerals of most pegmatites.
Source Pegmatite (Wikipedia)
Topaz named among the characteristic minerals of complex (rare-element) pegmatites.
Source Pegmatite (Wikipedia)
Classified As
In Discipline
Sources
1. Pegmatite (Wikipedia)
Wikimedia FoundationLead section
the last fluid fraction of a large crystallizing magma body.
Article body
These complex pegmatites are mined for lithium, beryllium, boron, fluorine, tin, tantalum, niobium, rare earth elements, uranium, and other valuable commodities. == Etymology == The word pegmatite derives from Homeric Greek, πήγνυμι (pēgnymi), which means “to bind together”, in reference to the intertwined crystals o
Article body, ore-or-metal-extraction
These complex pegmatites are mined for lithium, beryllium, boron, fluorine, tin, tantalum, niobium, rare earth elements, uranium, and other valuable commodities. == Etymology == The word pegmatite derives from Homeric Greek, πήγνυμι (pēgnymi), which means “to bind together”, in reference to the intertwined crystals o
Lead section
A pegmatite is an igneous rock showing a very coarse texture, with large interlocking crystals usually greater in size than 1 cm (0.4 in) and sometimes greater than 1 meter (3 ft). Most pegmatites are composed of quartz, feldspar, and mica, having a similar silicic composition to granite.
Associated With: Topaz, Complex pegmatite mineralogy section
These complex pegmatites contain unusual minerals of these elements, such as beryl, spodumene, lepidolite, amblygonite, topaz, apatite, fluorite, tourmaline.
Associated With: Apatite, Complex pegmatite mineralogy section
These complex pegmatites contain unusual minerals of these elements, such as beryl, spodumene, lepidolite, amblygonite, topaz, apatite, fluorite, tourmaline.
Associated With: Fluorite, Complex pegmatite mineralogy section
These complex pegmatites contain unusual minerals of these elements, such as beryl, spodumene, lepidolite, amblygonite, topaz, apatite, fluorite, tourmaline.
View the Source Wikidata: Pegmatite
Wikidata Q105630
Corundum (Wikipedia)
Wikimedia FoundationAssociated With: Corundum, Article textQuote, Associated With: Corundum, Article text
Other occurrences are as masses adjacent to ultramafic intrusives, associated with lamprophyre dikes and as large crystals in pegmatites. It commonly occurs as a detrital mineral in stream and beach sands because of its hardness and resistance to weathering.
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