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Andesite
Andesite

Pumice
Pumice



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Andesite
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Andesite vs Pumice

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Definition

Definition

Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava
Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals

History

Origin

North America
Spain

Discoverer

Theodor von Gümbel
Unknown

Etymology

From Andes mountains, where it is found in abundance
From Old French pomis, from a Latin dialect variant of pumex

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock

Family

Group

Volcanic
Volcanic

Other Categories

Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Aphanitic to Porphyritic
Vesicular

Color

Bluish - Grey, Grey, Pink, Yellow
Beige, Grey, Light Green, Light Grey, Pink, White, Yellow- grey

Maintenance

More
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull and Soft
Vesicular

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration, Kitchens
Decorative Aggregates, Flooring, Homes, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing, Powder

Industry

Construction Industry

Cobblestones, Construction Aggregate, for Road Aggregate
As Dimension Stone, Cement Manufacture, for Road Aggregate, In landscaping and horticulture, Making natural cement, Production of lightweight concrete blocks

Medical Industry

-
As an abrasive in skin exfoliating products, In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines
Artifacts

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork
As a traction material on snow-covered roads, As an abrasive in pencil erasers, Fine abrasive used for polishing, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Used in aquariums

Types

Types

Icelandite
Scoria

Features

Generally rough to touch, High silica content, Is one of the oldest rock
Host Rock for Lead

Archaeological Significance

Monuments

-
-

Famous Monuments

Middle of the Earth in Ecuador
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Andesite is a fine-grained igneous rock that forms when the magma is erupted onto the surface and is crystallized quickly.
Pumice rock forms when the magma cools so quickly that atoms in the melt are not able to arrange themselves into a crystalline structure.

Composition

Mineral Content

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon
Aluminum Oxides, Calcite, Carbonate, Iron Oxides, Silica

Compound Content

Silicon Dioxide
Al, Aluminium Oxide, CaO, Carbon Dioxide, MgO, Silicon Dioxide

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

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

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

76
1 7
👆🏻

Grain Size

Very fine-grained
Fine Grained

Fracture

Uneven
Planar

Streak

White
White, Greenish White or Grey

Porosity

Less Porous
Highly Porous

Luster

Vitreous
Earthy

Compressive Strength

225.00 N/mm251.20 N/mm2
0.15 450
👆🏻

Cleavage

-
Perfect

Toughness

1.1
3

Specific Gravity

2.5-2.82.86
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.11-2.36 g/cm30.25-0.3 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

2.39 kJ/Kg K0.87 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

India, Indonesia, Japan, Nepal, South Korea
Afghanistan, Indonesia, Japan, Russia

Africa

Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania
Ethiopia, Kenya, Tanzania

Europe

Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom
Greece, Hungary, Iceland, Italy, Turkey

Others

-
-

Deposits in Western Continents

North America

Mexico, USA
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA

South America

Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Argentina, Chile, Ecuador, Peru

Deposits in Oceania Continent

Australia

New South Wales, New Zealand, Western Australia
New Zealand, Western Australia

Andesite vs Pumice 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 Andesite and Pumice Reserves. Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals. 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 Andesite vs Pumice information and Andesite vs Pumice characteristics in the upcoming sections.

Andesite vs Pumice 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. Andesite vs Pumice characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Andesite and Properties of Pumice. Learn more about Andesite vs Pumice in the next section. The interior uses of Andesite include Decorative aggregates, Floor tiles, Homes, Interior decoration and Kitchens whereas the interior uses of Pumice include Decorative aggregates, Flooring, Homes and Interior decoration. Due to some exceptional properties of Andesite and Pumice, they have various applications in construction industry. The uses of Andesite in construction industry include Cobblestones, Construction aggregate, For road aggregate and that of Pumice include As dimension stone, Cement manufacture, For road aggregate, In landscaping and horticulture, Making natural cement, Production of lightweight concrete blocks.

More about Andesite and Pumice

Here you can know more about Andesite and Pumice. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Andesite and Pumice consists of mineral content and compound content. The mineral content of Andesite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon and mineral content of Pumice includes Aluminum Oxides, Calcite, Carbonate, Iron Oxides, Silica. You can also check out the list of all Igneous Rocks. When we have to compare Andesite vs Pumice, the texture, color and appearance plays an important role in determining the type of rock. Andesite is available in bluish - grey, grey, pink, yellow colors whereas, Pumice is available in beige, grey, light green, light grey, pink, white, yellow- grey colors. Appearance of Andesite is Dull and Soft and that of Pumice is Vesicular. Properties of rock is another aspect for Andesite vs Pumice. The hardness of Andesite is 7 and that of Pumice is 6. The types of Andesite are Icelandite whereas types of Pumice are Scoria. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Andesite is white while that of Pumice is white, greenish white or grey. The specific heat capacity of Andesite is 2.39 kJ/Kg K and that of Pumice is 0.87 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Andesite is heat resistant, pressure resistant, wear resistant whereas Pumice is impact resistant, pressure resistant.