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Pegmatite
Pegmatite

Pegmatite
Pegmatite



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Pegmatite

Pegmatite and Pegmatite

Definition

Definition

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

History

Origin

-
-

Discoverer

R. J. Hauy
R. J. Hauy

Etymology

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

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Hard Rock

Family

Group

Plutonic
Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock

Texture

Texture

Pegmatitic
Pegmatitic

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Layered, Banded, Veined and Shiny
Layered, Banded, Veined and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Flooring, Interior Decoration
Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone
As Building Stone, As Facing Stone, Paving Stone

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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

Medical Industry

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-

Antiquity Uses

Artifacts, Sculpture, Small Figurines
Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

Creating Artwork, Jewelry, Source of corundum, tourmalines, beryls and topaz
Creating Artwork, Jewelry, Source of corundum, tourmalines, beryls and topaz

Types

Types

Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite

Features

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

Archaeological Significance

Monuments

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-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

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

Composition

Mineral Content

Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz
Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz

Compound Content

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

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

77
1 7
👆🏻

Grain Size

Medium to Coarse Grained
Medium to Coarse Grained

Fracture

Conchoidal
Conchoidal

Streak

White
White

Porosity

Less Porous
Less Porous

Luster

Grainy, Pearly and Vitreous
Grainy, Pearly and Vitreous

Compressive Strength

178.54 N/mm2178.54 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
Perfect

Toughness

2.1
2.1

Specific Gravity

2.6-2.632.6-2.63
0 8.4
👆🏻

Transparency

Translucent to Opaque
Translucent to Opaque

Density

2.6-2.65 g/cm32.6-2.65 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.79 kJ/Kg K0.79 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Africa

South Africa
South Africa

Europe

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

Others

-
-

Deposits in Western Continents

North America

Canada
Canada

South America

Brazil
Brazil

Deposits in Oceania Continent

Australia

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

All about Pegmatite and Pegmatite Properties

Know all about Pegmatite and Pegmatite properties here. All properties of rocks are important as they define the type of rock and its application. Pegmatite and Pegmatite belong to Igneous Rocks.Texture of Pegmatite is Pegmatitic whereas that of Pegmatite is Pegmatitic. Pegmatite appears Layered, Banded, Veined and Shiny and Pegmatite appears Layered, Banded, Veined and Shiny. The luster of Pegmatite and Pegmatite is grainy, pearly and vitreous. Pegmatite and Pegmatite are available in black, brown, cream, green, grey, pink, red, rust, silver, white, yellow colors. The commercial uses of Pegmatite and Pegmatite are creating artwork, jewelry, source of corundum, tourmalines, beryls and topaz.