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Pegmatite
Pegmatite

Alkali Feldspar Granite
Alkali Feldspar Granite



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Pegmatite
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Alkali Feldspar Granite

Pegmatite vs Alkali Feldspar Granite

Definition

Definition

Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals
Alkali feldspar granite, also known as red granite, is a felsic igneous rock and a type of granite rich in the mineral potassium feldspar

History

Origin

-
-

Discoverer

R. J. Hauy
Unknown

Etymology

From Greek pegma, pegmat which means- thing joined together + -ite
From mineral fledspar which is present in large quantities in this rock

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
Phaneritic

Color

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

Maintenance

Less
More

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Layered, Banded, Veined and Shiny
Veined or Pebbled

Uses

Architecture

Interior Uses

Decorative Aggregates, Flooring, Interior Decoration
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone
As Building Stone, As Facing Stone, Bridges, Paving Stone, Near Swimming Pools, Office Buildings, Resorts

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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

Medical Industry

-
-

Antiquity Uses

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

Other Uses

Commercial Uses

Creating Artwork, Jewelry, Source of corundum, tourmalines, beryls and topaz
Curling, Gemstone, Laboratory bench tops, Tombstones

Types

Types

Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite
Granite

Features

Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock

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.
Alkali fledspar granite is an intrusive igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks.

Composition

Mineral Content

Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz

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, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Weathering

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

76-7
1 7
👆🏻

Grain Size

Medium to Coarse Grained
Large and Coarse Grained

Fracture

Conchoidal
-

Streak

White
White

Porosity

Less Porous
Less Porous

Luster

Grainy, Pearly and Vitreous
Dull to Grainy with Sporadic parts Pearly and Vitreous

Compressive Strength

178.54 N/mm2175.00 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

2.1
-

Specific Gravity

2.6-2.632.6-2.7
0 8.4
👆🏻

Transparency

Translucent to Opaque
Opaque

Density

2.6-2.65 g/cm32.6-2.8 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, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Iran, Japan, Nepal, North Korea, Russia, Saudi Arabia, South Korea
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

Africa

South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Europe

Austria, France, Greece, Ireland, Italy, Netherlands, Slovakia, Spain, Turkey, Ukraine
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic

Others

-
-

Deposits in Western Continents

North America

Canada
Canada, USA

South America

Brazil
-

Deposits in Oceania Continent

Australia

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

Pegmatite vs Alkali Feldspar Granite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Pegmatite and Alkali Feldspar Granite Reserves. Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Alkali feldspar granite, also known as red granite, is a felsic igneous rock and a type of granite rich in the mineral potassium feldspar. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Pegmatite vs Alkali Feldspar Granite information and Pegmatite vs Alkali Feldspar Granite characteristics in the upcoming sections.

Pegmatite vs Alkali Feldspar Granite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Pegmatite vs Alkali Feldspar Granite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Pegmatite and Properties of Alkali Feldspar Granite. Learn more about Pegmatite vs Alkali Feldspar Granite in the next section. The interior uses of Pegmatite include Decorative aggregates, Flooring and Interior decoration whereas the interior uses of Alkali Feldspar Granite include Bathrooms, Countertops, Decorative aggregates, Entryways, Floor tiles, Homes, Hotels, Kitchens and Stair treads. Due to some exceptional properties of Pegmatite and Alkali Feldspar Granite, they have various applications in construction industry. The uses of Pegmatite in construction industry include As dimension stone, Building houses or walls, Construction aggregate, For road aggregate, Landscaping and that of Alkali Feldspar Granite include As dimension stone.

More about Pegmatite and Alkali Feldspar Granite

Here you can know more about Pegmatite and Alkali Feldspar Granite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Pegmatite and Alkali Feldspar Granite consists of mineral content and compound content. The mineral content of Pegmatite includes Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz and mineral content of Alkali Feldspar Granite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Pegmatite vs Alkali Feldspar Granite, the texture, color and appearance plays an important role in determining the type of rock. Pegmatite is available in black, brown, cream, green, grey, pink, red, rust, silver, white, yellow colors whereas, Alkali Feldspar Granite is available in black, grey, orange, pink, white colors. Appearance of Pegmatite is Layered, Banded, Veined and Shiny and that of Alkali Feldspar Granite is Veined or Pebbled. Properties of rock is another aspect for Pegmatite vs Alkali Feldspar Granite. The hardness of Pegmatite is 7 and that of Alkali Feldspar Granite is 6-7. The types of Pegmatite are Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite whereas types of Alkali Feldspar Granite are Granite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Pegmatite and Alkali Feldspar Granite is white. The specific heat capacity of Pegmatite is 0.79 kJ/Kg K and that of Alkali Feldspar Granite is 0.79 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Pegmatite is heat resistant, impact resistant, pressure resistant whereas Alkali Feldspar Granite is heat resistant, wear resistant.