1 Definition
1.1 Definition
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase
Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism
1.3 History
1.3.1 Origin
1.4.2 Discoverer
1.5 Etymology
From French anorthose plagioclase + -ite1
From Greek mulōn mill + -ite
1.6 Class
Igneous Rocks
Metamorphic Rocks
1.6.2 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
1.7 Family
1.7.1 Group
1.8 Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.2 Texture
Foliated, Glassy
Foliated
2.3 Color
Black, Bluish - Grey, Brown, Green, Grey, Light Greenish Grey, Pink, White
Black to Grey
3.2 Maintenance
3.3 Durability
3.3.2 Water Resistant
3.4.2 Scratch Resistant
3.4.4 Stain Resistant
3.5.1 Wind Resistant
3.6.2 Acid Resistant
3.7 Appearance
Layered, Banded, Veined and Shiny
Dull, Banded and Foilated
5 Uses
5.1 Architecture
5.1.1 Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration
Decorative Aggregates, Interior Decoration
5.2.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration
5.2.3 Other Architectural Uses
5.3 Industry
5.3.1 Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate
for Road Aggregate, Landscaping, Roadstone
5.3.3 Medical Industry
Not Yet Used
Not Yet Used
5.4 Antiquity Uses
Artifacts, Sculpture, Small Figurines
Artifacts, Monuments
5.5 Other Uses
5.5.1 Commercial Uses
Creating Artwork, Curling
Creating Artwork, Gemstone, Jewelry
6 Types
6.1 Types
Proterozoic Anorthosite and Archean Anorthosite
Blastomylonites, Ultramylonites and Phyllonites
6.2 Features
Generally rough to touch, Is one of the oldest rock
Surfaces are often shiny
6.3 Archaeological Significance
6.3.1 Monuments
6.4.1 Famous Monuments
Not Applicable
Data Not Available
7.1.1 Sculpture
7.2.2 Famous Sculptures
Not Applicable
Data Not Available
7.2.3 Pictographs
7.2.5 Petroglyphs
7.3.2 Figurines
7.4 Fossils
8 Formation
8.1 Formation
Anorthosite is a phaneritic, intrusive igneous rock which is characterized by a predominance of plagioclase feldspar which is almost 90–100%, and a minimal mafic component.
Mylonites are ductilely deformed rocks formed by the accumulation of large shear strain, in ductile fault zones.
8.2 Composition
8.2.1 Mineral Content
Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene
Porphyroblasts
8.2.3 Compound Content
Ca, CaO, Chromium(III) Oxide, MgO, Sulfur Trioxide
Aluminium Oxide, Calcium Sulfate, Chromium(III) Oxide, Iron(III) Oxide, Magnesium Carbonate, Silicon Dioxide
8.3 Transformation
8.3.1 Metamorphism
9.1.2 Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism
Not Applicable
9.1.3 Weathering
9.1.4 Types of Weathering
Biological Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
9.1.5 Erosion
9.1.6 Types of Erosion
Chemical Erosion, Wind Erosion
Chemical Erosion, Sea Erosion, Wind Erosion
10 Properties
10.1 Physical Properties
10.1.1 Hardness
10.1.3 Grain Size
Coarse Grained
Fine Grained
10.1.9 Fracture
10.1.10 Streak
10.1.11 Porosity
Less Porous
Highly Porous
10.1.12 Luster
Pearly to Subvitreous
Shiny
10.1.13 Compressive Strength
10.1.17 Cleavage
10.1.18 Toughness
Not Available
Not Available
10.1.19 Specific Gravity
10.1.22 Transparency
10.1.23 Density
2.7-4 g/cm32.6-4.8 g/cm3
0
1400
10.3 Thermal Properties
10.3.1 Specific Heat Capacity
0.84 kJ/Kg K1.50 kJ/Kg K
0.14
3.2
11.3.2 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant
12 Reserves
12.1 Deposits in Eastern Continents
12.1.1 Asia
Not Yet Found
China, India, Indonesia, Saudi Arabia, South Korea
12.1.2 Africa
Not Yet Found
Eritrea, Ethiopia, Ghana, South Africa, Western Africa
12.1.3 Europe
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
England, Finland, France, Germany, Great Britain, Greece, United Kingdom
12.1.4 Others
Not Yet Found
Not Yet Found
12.2 Deposits in Western Continents
12.2.1 North America
12.2.2 South America
Bolivia, Colombia
Not Yet Found
12.3 Deposits in Oceania Continent
12.3.1 Australia
Central Australia, South Australia, Western Australia
Central Australia, Western Australia