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Amphibolite
Amphibolite




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Amphibolite Rock

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Definition

Definition

Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase

History

Origin

-

Discoverer

Alexandre Brongniart

Etymology

From Amphibole + -ite

Class

Metamorphic Rocks

Sub-Class

Durable Rock, Hard Rock

Family

Group

-

Other Categories

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Texture

Banded, Foliated, Massive

Color

Black, Brown, Green, Grey

Maintenance

Less

Durability

Durable

Water Resistant

81% - Igneous Rocks Rocks have it !

Scratch Resistant

86% - Igneous Rocks Rocks have it !

Stain Resistant

66% - Igneous Rocks Rocks have it !

Wind Resistant

49% - Igneous Rocks Rocks

Acid Resistant

48% - Igneous Rocks Rocks have it !

Appearance

Foliated

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Kitchens

Exterior Uses

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cobblestones, Construction Aggregate, for Road Aggregate, Landscaping, Production of Glass and Ceramics, Roadstone

Medical Industry

-

Antiquity Uses

Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Commemorative Tablets, Creating Artwork

Types

Types

Hornblendite

Features

Clasts are smooth to touch, Matrix variable, Surfaces are often shiny

Archaeological Significance

Monuments

-

Famous Monuments

-

Sculpture

-

Famous Sculptures

-

Pictographs

-

Petroglyphs

-

Figurines

-

Fossils

Absent

Formation

Formation

Amphibolite is a coarse-grained metamorphic rock which forms by metamorphism of mafic igneous rocks like basalt and gabbro or from the metamorphism of clay-rich sedimentary rocks like marl or graywacke.

Composition

Mineral Content

Amphibole, Andalusite, Biotite, Calcite, Epidote, Garnet, Hornblade, Kyanite, Magnetite, Olivine, Plagioclase, Pyroxene, Staurolite, Wollastonite

Compound Content

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

Transformation

Metamorphism

97% - Igneous Rocks Rocks

Types of Metamorphism

-

Weathering

99% - Igneous Rocks Rocks have it !

Types of Weathering

Chemical Weathering, Mechanical Weathering

Erosion

92% - Igneous Rocks Rocks have it !

Types of Erosion

Chemical Erosion, Glacier Erosion, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6-7
1 7
👆🏻

Grain Size

Medium to Coarse Grained

Fracture

Irregular to Conchoidal

Streak

White to Grey

Porosity

Less Porous

Luster

Vitreous to Dull

Compressive Strength

90.00 N/mm2
Rank: 32 (Overall)
0.15 450
👆🏻

Cleavage

-

Toughness

2.3

Specific Gravity

2.5
0 8.4
👆🏻

Transparency

Opaque

Density

2.85-3.07 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K
Rank: 15 (Overall)
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Russia, Turkey

Africa

Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda

Europe

Germany, Greece, Iceland, Norway, Poland

Others

-

Deposits in Western Continents

North America

Canada, USA

South America

Brazil

Deposits in Oceania Continent

Australia

South Australia, Western Australia

Information about Amphibolite

Rocks are naturally occurring solids which are composed of minerals & have been used by humans since ages. From Stone Age, rocks are used for various purposes. Also, the metals and minerals found in rock play an important role in our life. Get to know all the Amphibolite Uses. We have provided you with all information about Amphibolite rock here. Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase. Amphibolite is available in black, brown, green, grey colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Amphibolite is white to grey. Get to know more about Amphibolite rock and characteristics of Amphibolite rock in the next sections.