Andesite

Aplite

Andesite and Aplite

Andesite

Aplite

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Definition

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

Aplite is a fine-grained granite composed mainly of feldspar and quartz

History

Origin

North America

Iran

Discoverer

Theodor von Gümbel

Unknown

Etymology

From Andes mountains, where it is found in abundance

From German Aplit, from Greek haploos simple + -ite

Class

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Family

Group

Volcanic

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Aphanitic to Porphyritic

Granular, Graphic

Color

Bluish - Grey, Grey, Pink, Yellow

Black, Grey, Orange, Pink, White

Maintenance

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Soft

Veined or Pebbled

Uses

Architecture

Interior Uses

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

Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads

Exterior Uses

Office Buildings, Roof Tiles

As Building Stone, As Facing Stone, Bridges, Paving Stone, Near Swimming Pools, Office Buildings, Resorts

Other Architectural Uses

Curbing

Industry

Construction Industry

Cobblestones, Construction Aggregate, for Road Aggregate

As Dimension Stone

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

Curling, Gemstone, Laboratory bench tops, Small Sculptures, Tombstones

Types

Icelandite

Igneous rock

Features

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

Available in lots of colors, Available in Lots of Colors and Patterns, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Middle of the Earth in Ecuador

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

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

Aplites belong to intrusive igneous rocks which are mostly quart and alkali feldspar and are formed from residual eutectic granitic liquids and represent the final crystallization products of magma.

Composition

Mineral Content

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

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

Compound Content

Silicon 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, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Chemical Erosion, Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

76.5

1 7

👆🏻

Grain Size

Very fine-grained

Fracture

Uneven

Streak

White

Porosity

Less Porous

Luster

Vitreous

Dull to Pearly to Subvitreous

Compressive Strength

225.00 N/mm²130.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.1

Specific Gravity

2.5-2.82.6

0 8.4

👆🏻

Transparency

Opaque

Density

2.11-2.36 g/cm³2.6 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

2.39 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Indonesia, Japan, Nepal, South Korea

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

Africa

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

Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Europe

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

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

Others

Deposits in Western Continents

North America

Mexico, USA

Canada, USA

South America

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

Deposits in Oceania Continent

Australia

New South Wales, New Zealand, Western Australia

All about Andesite and Aplite Properties

Know all about Andesite and Aplite properties here. All properties of rocks are important as they define the type of rock and its application. Andesite and Aplite belong to Igneous Rocks.Texture of Andesite is Aphanitic to Porphyritic whereas that of Aplite is Granular, Graphic. Andesite appears Dull and Soft and Aplite appears Veined or Pebbled. The luster of Andesite is vitreous while that of Aplite is dull to pearly to subvitreous. Andesite is available in bluish - grey, grey, pink, yellow colors whereas Aplite is available in black, grey, orange, pink, white colors. The commercial uses of Andesite are commemorative tablets, creating artwork and that of Aplite are curling, gemstone, laboratory bench tops, small sculptures, tombstones.