Pyrolite

Nephelinite

Pyrolite and Nephelinite

Pyrolite

Nephelinite

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1 Definition

1.1 Definition

Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt

Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).

1.2 History

1.2.1 Origin

Pike County, U.S

Brazil

1.2.2 Discoverer

Unknown

1.3 Etymology

From the chemical and mineralogical composition of the upper mantle of the Earth

from French néphéline, from Greek nephelē

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Plutonic

1.6 Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Phaneritic

Aphanitic

2.2 Color

Dark Greenish - Grey

Black, Brown, Colourless, Green, Grey, White

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Rough and Shiny

Skeletal

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Homes, Interior Decoration

3.1.2 Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration, Paving Stone

As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Cobblestones

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds

Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)

4 Types

4.1 Types

Dunite, Wehrlite, Harzburgite, Lherzolite

Peralkaline Nephelinite

4.2 Features

Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock

Host Rock for Lead

4.3 Archaeological Significance

4.3.1 Monuments

Used

4.3.2 Famous Monuments

Data Not Available

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Used

Not Used

4.3.6 Petroglyphs

Used

Not Used

4.3.7 Figurines

Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Pyrolite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Nephelinite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

5.2 Composition

5.2.1 Mineral Content

Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene

Clinopyroxene, Nepheline, Plagioclase

5.2.2 Compound Content

Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide

Ca, CaO, Carbon, Cl, MgO

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

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

Contact Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

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

Chemical Erosion, Water Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

5.5-66.5

1 7

6.1.2 Grain Size

Coarse Grained

Fine Grained

6.1.3 Fracture

Irregular

Flat

6.1.4 Streak

White

6.1.5 Porosity

Less Porous

6.1.6 Luster

Shiny

Vitreous to Metallic

6.1.7 Compressive Strength

107.55 N/mm²35.00 N/mm²

0.15 450

6.1.8 Cleavage

Imperfect

6.1.9 Toughness

2.1

2.7

6.1.10 Specific Gravity

3-3.012.4-2.9

0 8.4

6.1.11 Transparency

Translucent to Opaque

Opaque

6.1.12 Density

3.1-3.4 g/cm³2.5-3 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

1.25 kJ/Kg K0.88 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey

Japan

7.1.2 Africa

Morocco, South Africa

Rwanda, Tanzania

7.1.3 Europe

Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland, Venezuela

Not Yet Found

7.1.4 Others

Not Yet Found

Hawaii Islands

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

7.2.2 South America

Brazil

Colombia

7.3 Deposits in Oceania Continent

7.3.1 Australia

New Zealand, Western Australia

Not Yet Found

All about Pyrolite and Nephelinite Properties

Know all about Pyrolite and Nephelinite properties here. All properties of rocks are important as they define the type of rock and its application. Pyrolite and Nephelinite belong to Igneous Rocks.Texture of Pyrolite is Phaneritic whereas that of Nephelinite is Aphanitic. Pyrolite appears Rough and Shiny and Nephelinite appears Skeletal. The luster of Pyrolite is shiny while that of Nephelinite is vitreous to metallic. Pyrolite is available in dark greenish - grey colors whereas Nephelinite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Pyrolite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Nephelinite are creating artwork, soil conditioner, source of magnesia (mgo).