Examples of 'pegmatite' in a sentence
Meaning of "pegmatite"
Pegmatite is a type of rock that is characterized by having large interlocking crystals
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- A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica.
How to use "pegmatite" in a sentence
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pegmatite
Mineralization is hosted mainly in pegmatite and granite.
It occurs in pegmatite associated with other phosphate minerals.
Greisen is a highly altered granitic rock or pegmatite.
They occur in a unique pegmatite of probable anatectic origin.
This has been interpreted as being related to an episode of pegmatite magmatism.
Vermiculite and biotite pegmatite are also found in this area.
Quartzolite is found in association with greisen and pegmatite.
Pegmatite may be produced by low degrees of partial melting of the crust.
They are typically minerals of granite and pegmatite rocks.
Variably thick pegmatite veins occur often in close contact within the ore zone.
It consists of a dense network of pegmatite veins.
The mineral occurs in pegmatite deposits and is easily mistaken for albite and other feldspars.
Amblygonite is a common fluorophosphate mineral found in pegmatite deposits.
Granite and pegmatite intrusions also worked their way into fissures in the older gneiss.
The most important sources of sheet mica are pegmatite deposits.
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Perthite feldspar within a pegmatite often shows gigantic perthitic texture visible to the naked eye.
There are large reserves of pegmatite.
This was on a base of pegmatite and Yorkshire sandstone.
Deposits occur in granite pegmatite.
It also occurs in skarn, pegmatite and hydrothermally altered volcanic rocks.
It has been found in association with granite pegmatite and in greisen.
Pegmatite minerals such as cordierite, beryl, tourmaline and garnet occur locally.
They occur in a unique pegmatite.
Surrounded by a granitic intrusion, the pegmatite contains smoky quartz and large crystals of magnetite.
It occurs as a secondary mineral in pegmatite.
The granitic formations contain many pegmatite veins with associated minerals.
Roberto zone in this hole is almost totally crosscut by a pegmatite.
Have a better understanding of the numerous pegmatite dykes identified at surface.
This is consistent with textures observed in the gneisses and pegmatite.
Rare elements concentrated in large crystals make pegmatite a potential source of economic concentrations.
Concentrated ores across a narrow surface expression make pegmatite dikes.
The pegmatite consists of a wall zone rich in feldspar and muscovite, and a quartz core.
This is the definition of a pegmatite.
Pegmatite with large quartz, huge perthitic alkali feldspar and mafic reaction seam.
Clarkeite forms by oxidation and replacement of uraninite late during pegmatite crystallization.
The mineralized rock is a quartz-albite pegmatite with traces of sulphides hosted in strongly altered tonalite.
Connected with the borolanite there are other types of nepheline syenite and pegmatite.
Mica is present in Precambrian pegmatite in the Llano region.
Environment In metamorphosed schists and as a replacement mineral in igneous pegmatite dikes.
Did you know we have got more pegmatite formations … around here than any other county?
Erosional processes expose the unique bedrock composed of Devonian granite with pegmatite intrusions.
The equigranular topaz granite and marginal pegmatite (stockscheider) crystallized from this evolved melt.
The information is provided by African Pegmatite.
Formation, In pegmatite dikes and granite rocks.
These are usually late-stage mineralizations in pegmatite pockets.
However, the pegmatite fields discovered to the east of Kabul are a real sensation.
The Buranga pegmatite.
Additionally, it is most commonly found as a secondary mineral in granite pegmatite.
However, an origin of pegmatite fluids by devolatilisation (dewatering) of metamorphic rocks is also envisaged.
It is associated with other lithium-bearing minerals like spodumene in pegmatite bodies.
