Andesite

Icelandite

Andesite and Icelandite

Andesite

Icelandite

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1 Definition

1.1 Definition

Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava

Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock

1.2 History

1.2.1 Origin

North America

Iceland

1.2.2 Discoverer

Unknown

Ian S. E. Carmichael

1.3 Etymology

From Andes mountains, where it is found in abundance

From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Volcanic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Aphanitic to Porphyritic

2.2 Color

Bluish - Grey, Grey, Pink, Yellow

2.3 Maintenance

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

Dull and Soft

3 Uses

3.1 Architecture

3.1.1 Interior Uses

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

3.1.2 Exterior Uses

Office Buildings, Roof Tiles

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

Cobblestones, Construction Aggregate, for Road Aggregate

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Jewellery, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Commemorative Tablets, Creating Artwork

Cemetery Markers, Creating Artwork

4 Types

4.1 Types

Icelandite

Not Available

4.2 Features

Generally rough to touch, High silica content, Is one of the oldest rock

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Middle of the Earth in Ecuador

Not Applicable

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Not Used

4.3.6 Petroglyphs

Not Used

4.3.7 Figurines

Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Andesite is a fine-grained igneous rock that forms when the magma is erupted onto the surface and is crystallized quickly.

Icelandite 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, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon

5.2.2 Compound Content

Silicon Dioxide

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

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

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

6 Properties

6.1 Physical Properties

6.1.1 Hardness

1 7

6.1.2 Grain Size

Very fine-grained

6.1.3 Fracture

Uneven

6.1.4 Streak

White

6.1.5 Porosity

Less Porous

6.1.6 Luster

Vitreous

6.1.7 Compressive Strength

225.00 N/mm²NA

0.15 450

6.1.8 Cleavage

Not Available

6.1.9 Toughness

1.1

6.1.10 Specific Gravity

2.5-2.82.5-2.8

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

2.11-2.36 g/cm³2.11-2.36 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

2.39 kJ/Kg K2.39 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Indonesia, Japan, Nepal, South Korea

7.1.2 Africa

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

7.1.3 Europe

Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Mexico, USA

7.2.2 South America

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

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Western Australia

All about Andesite and Icelandite Properties

Know all about Andesite and Icelandite properties here. All properties of rocks are important as they define the type of rock and its application. Andesite and Icelandite belong to Igneous Rocks.Texture of Andesite is Aphanitic to Porphyritic whereas that of Icelandite is Aphanitic to Porphyritic. Andesite appears Dull and Soft and Icelandite appears Dull and Soft. The luster of Andesite and Icelandite is vitreous. Andesite and Icelandite are available in bluish - grey, grey, pink, yellow colors. The commercial uses of Andesite are commemorative tablets, creating artwork and that of Icelandite are cemetery markers, creating artwork.