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
Unknown
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
Group
Plutonic
Not Applicable
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
Medical Industry
Not Yet Used
Not Yet Used
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
Monuments
Not Yet Used
Used
Famous Monuments
Not Applicable
Data Not Available
Sculpture
Used
Not Yet Used
Famous Sculptures
Not Applicable
Not Applicable
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Used
Not Yet Used
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
Not Applicable
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
Compressive Strength
Not Available
Cleavage
Irregular
Imperfect
Toughness
Not Available
Not Available
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
Asia
Not Yet Found
Russia
Africa
Not Yet Found
Not Yet Found
Europe
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
Ukraine
Others
Not Yet Found
Not Yet Found
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
All about Anorthosite and Jaspillite Properties
Know all about Anorthosite and Jaspillite properties here. All properties of rocks are important as they define the type of rock and its application. Anorthosite belongs to Igneous Rocks while Jaspillite belongs to Sedimentary Rocks.Texture of Anorthosite is Foliated, Glassy whereas that of Jaspillite is Banded, Trellis. Anorthosite appears Layered, Banded, Veined and Shiny and Jaspillite appears Banded and Glassy. The luster of Anorthosite is pearly to subvitreous while that of Jaspillite is earthy. 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. The commercial uses of Anorthosite are creating artwork, curling and that of Jaspillite are creating artwork, jewelry.