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Diabase
Diabase

Anorthosite
Anorthosite



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Diabase and Anorthosite

1 Definition
1.1 Definition
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase
1.2 History
1.2.1 Origin
Germany
Unknown
1.2.2 Discoverer
Christian Leopold von Buch
Unknown
1.3 Etymology
From Greek di + base
From French anorthose plagioclase + -ite1
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Volcanic
Plutonic
1.6 Other Categories
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Aphanitic, Granular
Foliated, Glassy
2.2 Color
Dark Grey to Black
Black, Bluish - Grey, Brown, Green, Grey, Light Greenish Grey, Pink, White
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Igneous Rocks Rocks have it !
81% Igneous Rocks Rocks have it !
2.4.2 Scratch Resistant
86% Igneous Rocks Rocks have it !
86% Igneous Rocks Rocks have it !
2.4.3 Stain Resistant
66% Igneous Rocks Rocks have it !
66% Igneous Rocks Rocks have it !
2.4.4 Wind Resistant
49% Igneous Rocks Rocks have it !
49% Igneous Rocks Rocks have it !
2.4.5 Acid Resistant
48% Igneous Rocks Rocks have it !
48% Igneous Rocks Rocks have it !
2.5 Appearance
Vesicular
Layered, Banded, Veined and Shiny
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Countertops, Decorative Aggregates, Homes, Interior Decoration, Kitchens
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, Garden Decoration
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
As Dimension Stone, Cement Manufacture, for Road Aggregate
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Sculpture, Small Figurines
3.4 Other Uses
3.4.1 Commercial Uses
An Oil and Gas Reservoir, Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones
Creating Artwork, Curling
4 Types
4.1 Types
Not Available
Proterozoic Anorthosite and Archean Anorthosite
4.2 Features
Smooth to touch
Generally rough to touch, Is one of the oldest rock
4.3 Archaeological Significance
4.3.1 Monuments
Used
Not Yet Used
4.3.2 Famous Monuments
Stonehenge in English county of Wiltshire
Not Applicable
4.3.3 Sculpture
Used
Used
4.3.4 Famous Sculptures
Data Not Available
Not Applicable
4.3.5 Pictographs
Not Used
Not Used
4.3.6 Petroglyphs
Not Used
Not Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
Diabase forms when molten igneous rock is squeezed up into a vertical crack in other rocks, the crack is usually forced apart and the molten rock cools in the space to form a tabular igneous intrusion cutting across the surrounding rocks and is known as a dike.
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.
5.2 Composition
5.2.1 Mineral Content
Augite, Chlorite, Olivine, Plagioclase, Pyroxene, Pyrrhotite, Serpentine
Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene
5.2.2 Compound Content
Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide
Ca, CaO, Chromium(III) Oxide, MgO, Sulfur Trioxide
5.3 Transformation
5.3.1 Metamorphism
97% Igneous Rocks Rocks have it !
97% Igneous Rocks Rocks have it !
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Cataclastic Metamorphism, Contact Metamorphism
5.3.3 Weathering
99% Igneous Rocks Rocks have it !
99% Igneous Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering
5.3.5 Erosion
92% Igneous Rocks Rocks have it !
92% Igneous Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
Chemical Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
7
5-6
6.1.2 Grain Size
Fine to Medium Grained
Coarse Grained
6.1.3 Fracture
Conchoidal
Irregular
6.1.4 Streak
Black
White
6.1.5 Porosity
Highly Porous
Less Porous
6.1.6 Luster
Not Available
Pearly to Subvitreous
6.1.7 Compressive Strength
What Is Flint
225.00 N/mm2
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
What Is Obsidian
ADD ⊕
6.1.8 Cleavage
Not Available
Irregular
6.1.9 Toughness
1.6
Not Available
6.1.10 Specific Gravity
2.86-2.87
2.62-2.82
6.1.11 Transparency
Opaque
Translucent
6.1.12 Density
2.7-3.3 g/cm3
2.7-4 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
What Is Banded ..
Not Available
Rank: N/A (Overall)
0.84 kJ/Kg K
Rank: 15 (Overall)
What Is Granulite
ADD ⊕
6.2.2 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
India
Not Yet Found
7.1.2 Africa
South Africa, Tanzania
Not Yet Found
7.1.3 Europe
Germany, Greece, Italy, Scotland, Turkey
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
7.1.4 Others
Antarctica, Greenland
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, USA
Canada
7.2.2 South America
Argentina, Brazil, Colombia, Venezuela
Bolivia, Colombia
7.3 Deposits in Oceania Continent
7.3.1 Australia
Central Australia, New Zealand, Queensland, Western Australia
Central Australia, South Australia, Western Australia

All about Diabase and Anorthosite Properties

Know all about Diabase and Anorthosite properties here. All properties of rocks are important as they define the type of rock and its application. Diabase and Anorthosite belong to Igneous Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Anorthosite is Foliated, Glassy. Diabase appears Vesicular and Anorthosite appears Layered, Banded, Veined and Shiny. The luster of Diabase is not available while that of Anorthosite is pearly to subvitreous. Diabase is available in dark grey to black colors whereas Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. The commercial uses of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Anorthosite are creating artwork, curling.