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Andesite Rock

Types of Hard Rocks

Granite
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Basalt
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Sandstone
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Definition of Andesite. Andesite Definition </>
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Definition of Andesite. Definition
Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava
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History describes the place of origin and the discoverer of Andesite. History of Andesite
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Origin is the place where Andesite was first discovered. Origin
North America
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Name of Andesite discoverer. Discoverer
Unknown
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Study of origin of the word "Andesite". Etymology
From Andes mountains, where it is found in abundance
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Category of Rocks. Class
Igneous Rocks
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Sub-class of Andesite. Sub-Class
  • Durable Rock
  • Hard Rock
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Nature of rocks which is either volcanic or plutonic according to its formation process. Andesite Family
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Group of Andesite. It is applicable only to Igneous rocks. Group
Volcanic
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Other categories of Andesite excluding Igneous, Sedimentary and Metamorphic. Other Categories
  • Fine Grained Rock
  • Opaque Rock
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The shape, arrangement and distribution of minerals or grains within Andesite. Andesite Texture </>
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Arrangement and distribution of minerals within rock. Texture
Aphanitic to Porphyritic
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The colors in which Andesite is available. Andesite Color
Bluish - Grey, Grey, Pink, Yellow
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Maintenance required for Rocks. Maintenance
More
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Ability of Rocks to withstand wear, pressure, or damage. Durability
Durable
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The resistance offered by Andesite on exposure to Water. Water Resistant
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Resistance offered by Andesite to scratches. Scratch Resistant
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Resistance offered by Andesite to stains. Stain Resistant
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Resistance offered by Andesite to wind. Wind Resistant
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Resistance offered by Andesite while reacting with acid. Acid Resistant
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Visual Appearance of Andesite. Appearance
Dull and Soft
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Uses of Andesite in architecture and construction industry. Andesite Uses </>
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Architectural uses of Andesite. Architecture
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Interior Uses of Andesite which include as Countertops, Decorative Aggregates, Entryways etc. Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration and Kitchens
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Exterior Uses of Andesite which include as Building Stone, Garden Decoration etc. Exterior Uses
Office Buildings and Roof Tiles
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Other Architectural Uses of Andesite Other Architectural Uses
Curbing
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Industrial uses of Andesite. Industry
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Uses of Andesite in construction industry. Construction Industry
Cobblestones, Construction Aggregate, for Road Aggregate
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Uses of Andesite in medical industry. Medical Industry
Not Yet Used
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Rocks used to build buildings and monuments, or work of art like sculptures from the ancient past or used for creating artifacts and jewelry. Antiquity Uses
Artifacts, Monuments, Sculpture and Small Figurines
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Other uses of Andesite. Other Uses
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Other commercial uses of Andesite. Commercial Uses
Commemorative Tablets, Creating Artwork
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Types of Andesite. Andesite Types </>
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Types of Andesite. Types
Icelandite
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Unique features of Andesite. Features
Generally rough to touch, High silica content, Is one of the oldest rock
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The systematic study of historical past human life and culture by the recovery and examination of remaining material evidence like graves, buildings, tools, pottery etc. Archaeological Significance of Andesite
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Buildings, structures, or sites which are build out of various rocks that are of historical importance. Monuments
Used
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Famous Monuments which are built from Andesite. Famous Monuments
Middle of the Earth in Ecuador
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Art of making statues or attractive forms by carving rocks or stones. Sculpture
Used
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Famous Sculptures which are carved using Andesite rock. Famous Sculptures
Data Not Available
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Pictographs are paintings or drawings that have been placed on the rock face. Such artworks have typically been made with mineral earths and other natural compounds and they are mostly found in caves, rock shelters and areas with dry climates. Pictographs
Not Used
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A petroglyph is an image which is carved into a rock. This carving produces a visible indentation in the rock by scratching away the weathered surface to reveal unweathered rock of a different color below. Petroglyphs
Not Used
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Small statues which represent a human, deity or animal. Figurines are also referred to statuette. Figurines
Used
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Preserved remains of animals, plants and organisms from past. Fossils
Absent
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Formation of Andesite. Formation of Andesite </>
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Process of formation of Andesite rock. Formation
Andesite is a fine-grained igneous rock that forms when the magma is erupted onto the surface and is crystallized quickly.
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Composition gives the list of constituents of Andesite. Composition
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Mineral content of Andesite. Mineral Content
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon
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Compound content of Andesite. Compound Content
Silicon Dioxide
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Change in nature, appearance or form of Andesite. Transformation
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Change in form or nature of Andesite. Metamorphism
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List of metamorphism processes which Andesite undergoes. Types of Metamorphism
  • Burial Metamorphism
  • Cataclastic Metamorphism
  • Contact Metamorphism
  • Hydrothermal Metamorphism
  • Impact Metamorphism
  • Regional Metamorphism
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Change in appearance or texture of Andesite due to atmospheric exposure. Weathering
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List of weathering processes which Andesite undergoes. Types of Weathering
  • Biological Weathering
  • Chemical Weathering
  • Mechanical Weathering
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Process of gradual destruction of Andesite by wind, water or other agents. Erosion
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List of erosion processes which Andesite undergoes. Types of Erosion
  • Chemical Erosion
  • Coastal Erosion
  • Glacier Erosion
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Thermal and physical properties of Andesite. Properties of Andesite </>
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Properties that are measurable or whose values describe a state of a physical system of Andesite. Physical Properties of Andesite
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Measure of ease with which a smooth surface of a rock can be scratched, or of its resistance to abrasion. It is measured on Moh’s Hardness scale. Hardness
7
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Size of individual mineral crystals in Andesite. Grain Size
Very fine-grained
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Cracking or breaking of Andesite. Fracture
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Uneven fracture is a rough surface or one with random irregularities.Uneven
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Color of Andesite when powdered. Streak
White
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Porosity of Andesite is the quality of being porous, or full of tiny holes. Porosity
Less Porous
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Interaction of light with the surface of Andesite. Luster
Vitreous
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Resistance applied by Rocks to break under compression. Compressive Strength
225.00 N/mm2
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Forms due to deformation and metamorphism in Andesite. Cleavage
Not Available
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Ability to absorb energy and plastically deform without fracturing. Toughness
1.1
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Ratio of density of Andesite to the density of reference rock. Specific Gravity
2.5-2.8
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Degree to which light can pass through a rock. Transparency
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A rock is said to be opaque if it blocks all the rays of light to pass through it.Opaque
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Degree of compactness of a rock. Density
2.11-2.36 g/cm3
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Properties which describe the response of a rock on the application of heat. Thermal Properties of Andesite
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Amount of heat per unit mass required to raise the temperature by one degree Celsius. Specific Heat Capacity
2.39 kJ/Kg K
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Resistance offered by Andesite against deformation, wear, scratch and heat. Resistance
  • Heat Resistant
  • Pressure Resistant
  • Wear Resistant
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Reserves of Andesite. Andesite Reserves </>
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Deposits of Andesite in Asia, Africa and Europe which constitute the eastern continents. Andesite Deposits in Eastern Continents
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Deposits of Andesite in Asian continent. Asia
India, Indonesia, Japan, Nepal, South Korea
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Deposits of Andesite in African continent. Africa
Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania
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Deposits of Andesite in European continent. Europe
Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom
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List of countries where Andesite deposits are found excluding the 6 continents. Others
Not Yet Found
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Deposits of Andesite in North and South America which constitute the western continents. Andesite Deposits in Western Continents
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Deposits of Andesite in North American continent. North America
Mexico, USA
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Deposits of Andesite in South American continent. South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
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Deposits of Andesite in Australia which constitute the Oceania continent. Andesite Deposits in Oceania Continent
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Deposits of Andesite in Australian continent. Australia
New South Wales, New Zealand, Western Australia

Information about Andesite

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 Andesite Uses. We have provided you with all information about Andesite rock here. Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Andesite is available in bluish - grey, grey, pink, yellow colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Andesite is white. Get to know more about Andesite rock and characteristics of Andesite rock in the next sections.

Characteristics of Andesite

Many rocks have distinct characteristics. Some of the Properties of Andesite are hardness, structure, streak, fracture etc. Andesite is significant as it is composed of minerals and has variety of uses in our day to day life. The characteristics of Andesite plays an important role in its identification. The hardness of Andesite is 7 on Mohโ€™s hardness scale. Rocks according to their hardness are divided into:Types of Hard Rocks, Types of Soft Rocks and Rocks with Medium Hardness. Fracture of Andesite rock is uneven. Its specific heat capacity is 2.39 kJ/Kg K. Andesite is heat resistant, pressure resistant, wear resistant. Some of its uses are:

  • Interior Uses: Decorative aggregates, Floor tiles, Homes, Interior decoration and Kitchens.
  • Construction Industry: Cobblestones, Construction aggregate, For road aggregate.

Know more about Andesite rock in the next section.

More About Andesite

Andesite is a type of Igneous Rocks. The color of rock is one of its important property. Andesite rock is available in bluish - grey, grey, pink, yellow colors. It is Dull and Soft in appearance. The Andesite mineral content includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon. Its compound content includes Silicon Dioxide. Letโ€™s move on to the types of Andesite. The types of Andesite include Icelandite. Fossils are the remains of prehistoric plants or animals which are embedded in rock and preserved in petrified form. Fossils are found only in sedimentary rocks. As Andesite belongs to Igneous Rocks, fossils are not found in it.