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What is Pegmatite?



Definition
0

Definition
Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals 0

History
0

Origin
Unknown 0

Discoverer
R. J. Hauy 0

Etymology
From Greek pegma, pegmat which means- thing joined together + -ite 0

Class
Igneous Rocks 0

Sub-Class
Durable Rock, Hard Rock 0

Family
0

Group
Plutonic 0

Other Categories
Coarse Grained Rock, Opaque Rock 0

Texture
0

Texture
Pegmatitic 0

Color
Black, Brown, Cream, Green, Grey, Pink, Red, Rust, Silver, White, Yellow 0

Maintenance
Less 0

Durability
Durable 0

Water Resistant
Yes 0

Scratch Resistant
Yes 0

Stain Resistant
Yes 0

Wind Resistant
No 0

Acid Resistant
No 0

Appearance
Layered, Banded, Veined and Shiny 0

Uses
0

Architecture
0

Interior Uses
Decorative Aggregates, Flooring, Interior Decoration 0

Exterior Uses
As Building Stone, As Facing Stone, Paving Stone 0

Other Architectural Uses
Curbing 0

Industry
0

Construction Industry
As Dimension Stone, Building houses or walls, Construction Aggregate, for Road Aggregate, Landscaping 0

Medical Industry
Not Yet Used 0

Antiquity Uses
Artifacts, Sculpture, Small Figurines 0

Other Uses
0

Commercial Uses
Creating Artwork, Jewelry, Source of corundum, tourmalines, beryls and topaz 0

Types
0

Types
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite 0

Features
Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz 0

Archaeological Significance
0

Monuments
Not Yet Used 0

Famous Monuments
Not Applicable 0

Sculpture
Used 0

Famous Sculptures
Data Not Available 0

Pictographs
Not Used 0

Petroglyphs
Not Used 0

Figurines
Used 0

Fossils
Absent 0

Formation
0

Formation
Pegmatite rock is holocrystalline, intrusive igneous rock which is formed by partial melting and dewatering during the process of metamorphism. 0

Composition
0

Mineral Content
Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz 0

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, Phosphorus Pentoxide 0

Transformation
0

Metamorphism
Yes 0

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism 0

Weathering
Yes 0

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering 0

Erosion
Yes 0

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion 0

Properties
0

Physical Properties
0

Hardness
7 0

Grain Size
Medium to Coarse Grained 0

Fracture
Conchoidal 0

Streak
White 0

Porosity
Less Porous 0

Luster
Grainy, Pearly and Vitreous 0

Compressive Strength
178.54 N/mm2 12

Cleavage
Perfect 0

Toughness
2.1 0

Specific Gravity
2.6-2.63 0

Transparency
Translucent to Opaque 0

Density
2.6-2.65 g/cm3 0

Thermal Properties
0

Specific Heat Capacity
Not Available 0

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant 0

Reserves
0

Deposits in Eastern Continents
0

Asia
China, India, Iran, Japan, Nepal, North Korea, Russia, Saudi Arabia, South Korea 0

Africa
South Africa 0

Europe
Austria, France, Greece, Ireland, Italy, Netherlands, Slovakia, Spain, Turkey, Ukraine 0

Others
Not Yet Found 0

Deposits in Western Continents
0

North America
Canada 0

South America
Brazil 0

Deposits in Oceania Continent
0

Australia
New South Wales, Queensland, South Australia, Western Australia 0

Summary >>
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Igneous Rocks

Learn more about Properties of Pegmatite

What is Pegmatite? In this section, we will learn more about properties of Pegmatite i.e. physical and thermal properties. Physical properties of Pegmatite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Pegmatite is 178.54 N/mm2. Streak of Pegmatite is white while its cleavage is perfect. Luster of Pegmatite is grainy, pearly and vitreous and its fracture is conchoidal. Pegmatite is translucent to opaque in nature. Know all about Pegmatite, What is Pegmatite, its composition, features, facts and reserves in next sections.

Know about Composition of Pegmatite

What is Pegmatite composed of? Get to know about composition of Pegmatite here. Pegmatite definition gives information about the Formation of Pegmatite and its composition.The composition of Pegmatite can be further divided into mineral and compound content. The mineral content of Pegmatite rock includes Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz and The compound content of Pegmatite rock includes Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, Phosphorus Pentoxide. Almost all rocks undergo transformation process. Know all about Pegmatite rock in next section.

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