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Felsite
Felsite

Amphibolite
Amphibolite



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Amphibolite

Felsite vs Amphibolite

Definition

Definition

Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition
Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase

History

Origin

-
-

Discoverer

Unknown
Alexandre Brongniart

Etymology

From English feldspar and -ite
From Amphibole + -ite

Class

Igneous Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

Volcanic
-

Other Categories

Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Texture

Arborescent Patterned, Vitreous
Banded, Foliated, Massive

Color

Black, Blue, Brown, Green, Orange, Red, Tan, Yellow
Black, Brown, Green, Grey

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Layered, Banded, Veined and Shiny
Foliated

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points
As Dimension Stone, Building houses or walls, Cobblestones, Construction Aggregate, for Road Aggregate, Landscaping, Production of Glass and Ceramics, Roadstone

Medical Industry

Surgery
-

Antiquity Uses

Artifacts
Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

Mirror, Jewelry
Cemetery Markers, Commemorative Tablets, Creating Artwork

Types

Types

Igneous rock
Hornblendite

Features

Available in Lots of Colors and Patterns, Clasts are smooth to touch, Splintery, Very fine grained rock
Clasts are smooth to touch, Matrix variable, Surfaces are often shiny

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Felsite 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.
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

Feldspar, Iron Oxides
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
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, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
-

Weathering

Types of Weathering

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

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

5-5.56-7
1 7
👆🏻

Grain Size

Fine Grained
Medium to Coarse Grained

Fracture

Conchoidal
Irregular to Conchoidal

Streak

White
White to Grey

Porosity

Very Less Porous
Less Porous

Luster

Vitreous
Vitreous to Dull

Compressive Strength

0.15 N/mm290.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

-
2.3

Specific Gravity

2.6-2.72.5
0 8.4
👆🏻

Transparency

Translucent
Opaque

Density

2.6 g/cm32.85-3.07 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.84 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

Afghanistan, Indonesia, Japan, Russia
Russia, Turkey

Africa

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

Europe

Greece, Hungary, Iceland, Italy, Turkey
Germany, Greece, Iceland, Norway, Poland

Others

-
-

Deposits in Western Continents

North America

Canada, Mexico, USA
Canada, USA

South America

Argentina, Chile, Ecuador, Peru
Brazil

Deposits in Oceania Continent

Australia

New Zealand
South Australia, Western Australia

Felsite vs Amphibolite 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 Felsite and Amphibolite Reserves. Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase. 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 Felsite vs Amphibolite information and Felsite vs Amphibolite characteristics in the upcoming sections.

Felsite vs Amphibolite 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. Felsite vs Amphibolite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Felsite and Properties of Amphibolite. Learn more about Felsite vs Amphibolite in the next section. The interior uses of Felsite include Decorative aggregates, Flooring and Interior decoration whereas the interior uses of Amphibolite include Countertops, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels and Kitchens. Due to some exceptional properties of Felsite and Amphibolite, they have various applications in construction industry. The uses of Felsite in construction industry include Arrowheads, Cutting tool, Knives, Scrapers, Spear points and that of Amphibolite include As dimension stone, Building houses or walls, Cobblestones, Construction aggregate, For road aggregate, Landscaping, Production of glass and ceramics, Roadstone.

More about Felsite and Amphibolite

Here you can know more about Felsite and Amphibolite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Felsite and Amphibolite consists of mineral content and compound content. The mineral content of Felsite includes Feldspar, Iron Oxides and mineral content of Amphibolite includes Amphibole, Andalusite, Biotite, Calcite, Epidote, Garnet, Hornblade, Kyanite, Magnetite, Olivine, Plagioclase, Pyroxene, Staurolite, Wollastonite. You can also check out the list of all Igneous Rocks. When we have to compare Felsite vs Amphibolite, the texture, color and appearance plays an important role in determining the type of rock. Felsite is available in black, blue, brown, green, orange, red, tan, yellow colors whereas, Amphibolite is available in black, brown, green, grey colors. Appearance of Felsite is Layered, Banded, Veined and Shiny and that of Amphibolite is Foliated. Properties of rock is another aspect for Felsite vs Amphibolite. The hardness of Felsite is 5-5.5 and that of Amphibolite is 6-7. The types of Felsite are Igneous rock whereas types of Amphibolite are Hornblendite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Felsite is white while that of Amphibolite is white to grey. The specific heat capacity of Felsite is 0.92 kJ/Kg K and that of Amphibolite is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Felsite is heat resistant, impact resistant whereas Amphibolite is heat resistant, pressure resistant, wear resistant.