Definition
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
Origin
-
Western Australia, Minnesota
Discoverer
Unknown
Unknown
Etymology
From French anorthose plagioclase + -ite1
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
Texture
Foliated, Glassy
Banded, Trellis
Color
Black, Bluish - Grey, Brown, Green, Grey, Light Greenish Grey, Pink, White
Red, Reddish Brown
Durability
Durable
Durable
Appearance
Layered, Banded, Veined and Shiny
Banded and Glassy
Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration
Decorative Aggregates, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration
As Facing Stone, Garden Decoration, Paving Stone
Other Architectural Uses
Curbing
Curbing
Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
Antiquity Uses
Artifacts, Sculpture, Small Figurines
Artifacts, Jewellery, Monuments
Commercial Uses
Creating Artwork, Curling
Creating Artwork, Jewelry
Types
Proterozoic Anorthosite and Archean Anorthosite
Algoma-type , Lake Superior-type and Superior-type
Features
Generally rough to touch, Is one of the oldest rock
Is one of the oldest rock
Archaeological Significance
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.
Jaspillite is a type of sedimentary rock which is formed by the compaction and sedimentation of pieces of broken or weathered rocks and minerals.
Mineral Content
Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene
Coesite, Quartz, Sand
Compound Content
Ca, CaO, Chromium(III) Oxide, MgO, Sulfur Trioxide
Fe, Iron(III) Oxide, Silicon Dioxide
Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism
-
Types of Weathering
Biological Weathering
Biological Weathering, Chemical Weathering
Types of Erosion
Chemical Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion
Grain Size
Coarse Grained
Large and Coarse Grained
Fracture
Irregular
Conchoidal
Porosity
Less Porous
Very Less Porous
Luster
Pearly to Subvitreous
Earthy
Specific Gravity
2.62-2.82
5.0-5.3
Transparency
Translucent
Translucent to Opaque
Density
2.7-4 g/cm3
0-5.7 g/cm3
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Wear Resistant
Deposits in Eastern Continents
Europe
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
Ukraine
Deposits in Western Continents
North America
Canada
Canada, USA
South America
Bolivia, Colombia
Brazil
Deposits in Oceania Continent
Australia
Central Australia, South Australia, Western Australia
Western Australia
Anorthosite vs Jaspillite Characteristics
Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Anorthosite vs Jaspillite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Anorthosite and Properties of Jaspillite. Learn more about Anorthosite vs Jaspillite in the next section. The interior uses of Anorthosite include Decorative aggregates, Floor tiles, Homes and Interior decoration whereas the interior uses of Jaspillite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Anorthosite and Jaspillite, they have various applications in construction industry. The uses of Anorthosite in construction industry include As dimension stone, Cement manufacture, For road aggregate and that of Jaspillite include As a flux in the production of steel and pig iron, As a sintering agent in steel industry to process iron ore, As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories.
More about Anorthosite and Jaspillite
Here you can know more about Anorthosite and Jaspillite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Anorthosite and Jaspillite consists of mineral content and compound content. The mineral content of Anorthosite includes Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene and mineral content of Jaspillite includes Coesite, Quartz, Sand. You can also check out the list of all Igneous Rocks. When we have to compare Anorthosite vs Jaspillite, the texture, color and appearance plays an important role in determining the type of rock. Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors whereas, Jaspillite is available in red, reddish brown colors. Appearance of Anorthosite is Layered, Banded, Veined and Shiny and that of Jaspillite is Banded and Glassy. Properties of rock is another aspect for Anorthosite vs Jaspillite. The hardness of Anorthosite is 5-6 and that of Jaspillite is 3. The types of Anorthosite are Proterozoic Anorthosite and Archean Anorthosite whereas types of Jaspillite are Algoma-type , Lake Superior-type and Superior-type. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Anorthosite and Jaspillite is white. The specific heat capacity of Anorthosite is 0.84 kJ/Kg K and that of Jaspillite is 3.20 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Anorthosite is heat resistant, impact resistant, pressure resistant, scratch resistant, wear resistant whereas Jaspillite is heat resistant, impact resistant, wear resistant.