- https://data.geoscience.earth/ncl
- INSPIRE
- MineralDepositGroupValue
- _05627144-5915-4388-bc34-1a5f43d9063e
Entry: pegmatite
URI: http://inspire.ec.europa.eu/codelist/MineralDepositGroupValue/pegmatite
Pegmatites tend to occur in the aureoles of granites in most cases, and are usually granitic in character, often closely matching the compositions of nearby granites. Pegmatites should thus represent exsolved granitic material which crystallises in the country rocks. However, an origin of pegmatite fluids by devolatilisation (dewatering) of metamorphic rocks is also envisaged. Pegmatites are coarse-grained rocks, mainly composed of quartz, feldspar and mica and are important because they often contain rare earth minerals and gemstones, such as aquamarine, tourmaline, topaz, fluorite, apatite and corundum, often along with tin and tungsten minerals, among others.
Core metadata
| is a | Concept |
| submitted by | Sophie Chaduteau |
| accepted on | 16 Jul 2026 11:52:37.280 |
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All metadata properties
| date accepted |
16 Jul 2026 11:52:37.280
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| date submitted |
16 Jul 2026 09:20:11.014
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| definition |
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| item class |
Concept
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| label |
pegmatite
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| notation |
05627144-5915-4388-bc34-1a5f43d9063e
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| register |
mineral deposit group value
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| status |
status experimental
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| submitter |
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| type |
register item
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| version info |
2
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Definition
| definition |
Pegmatites tend to occur in the aureoles of granites in most cases, and are usually granitic in character, often closely matching the compositions of nearby granites. Pegmatites should thus represent exsolved granitic material which crystallises in the country rocks. However, an origin of pegmatite fluids by devolatilisation (dewatering) of metamorphic rocks is also envisaged. Pegmatites are coarse-grained rocks, mainly composed of quartz, feldspar and mica and are important because they often contain rare earth minerals and gemstones, such as aquamarine, tourmaline, topaz, fluorite, apatite and corundum, often along with tin and tungsten minerals, among others.
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| in scheme |
Mineral Deposit Group Value
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| notation |
pegmatite
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| pref label |
pegmatite
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| type |
Concept
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