Granulite

Peridotite

Granulite and Peridotite

Granulite

Peridotite

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Definition

Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.

Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle

History

Origin

Central Europe

Pike County, U.S

Discoverer

Unknown

Etymology

From Latin granulum, a little grain or fine grained

From French, from peridot +‎ -ite

Class

Metamorphic Rocks

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Granoblastic

Phaneritic

Color

Black, Brown

Dark Greenish - Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined or Pebbled

Rough and Shiny

Uses

Architecture

Interior Uses

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

Decorative Aggregates, Interior Decoration

Exterior Uses

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

As Building Stone, As Facing Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Building houses or walls

As Dimension Stone, Cobblestones

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture

Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Curling, Gemstone, Laboratory bench tops, Soil Conditioner, Tombstones

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

Types

Metamorphic rock

Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite

Features

Clasts are smooth to touch

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Granulite is a fine-grained granular metamorphic rock in which the main component minerals are feldspars and quartz and forms at high temperature and pressure conditions.

Peridotites can be formed in two ways: as mantle rocks formed during the accretion and differentiation of the Earth or as cumulate rocks formed by precipitation of olivine and pyroxenes from basaltic magmas.

Composition

Mineral Content

Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Quartz

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

Compound Content

Aluminium Oxide, CaO, Carbon Dioxide, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Sulfur Dioxide, Titanium Dioxide

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Chemical Erosion

Properties

Physical Properties

Hardness

6-75.5-6

1 7

👆🏻

Grain Size

Medium to Coarse Grained

Coarse Grained

Fracture

Irregular

Streak

White

Porosity

Very Less Porous

Less Porous

Luster

Vitreous

Shiny

Compressive Strength

175.00 N/mm²107.55 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.1

Specific Gravity

2.8-3.03-3.01

0 8.4

👆🏻

Transparency

Opaque

Translucent to Opaque

Density

3.06-3.33 g/cm³3.1-3.4 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.14 kJ/Kg K1.26 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Wear Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

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

Africa

Angola, Egypt, Madagascar, Nigeria, South Africa

Morocco, South Africa

Europe

Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic

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

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

All about Granulite and Peridotite Properties

Know all about Granulite and Peridotite properties here. All properties of rocks are important as they define the type of rock and its application. Granulite belongs to Metamorphic Rocks while Peridotite belongs to Igneous Rocks.Texture of Granulite is Granoblastic whereas that of Peridotite is Phaneritic. Granulite appears Veined or Pebbled and Peridotite appears Rough and Shiny. The luster of Granulite is vitreous while that of Peridotite is shiny. Granulite is available in black, brown colors whereas Peridotite is available in dark greenish - grey colors. The commercial uses of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones and that of Peridotite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.