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Tephrite
Tephrite

Jaspillite
Jaspillite



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Tephrite
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Jaspillite

Tephrite and Jaspillite

1 Definition
1.1 Definition
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
1.2 History
1.2.1 Origin
Germany
Western Australia, Minnesota
1.2.2 Discoverer
Van Tooren
Unknown
1.3 Etymology
From Greek tephra, ashes from Indo-European base, to burn
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
1.4 Class
Igneous Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Volcanic
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Aphanitic to Porphyritic
Banded, Trellis
2.2 Color
Black, Brown, Colourless, Green, Grey, White
Red, Reddish Brown
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
2.4.2 Scratch Resistant
2.4.3 Stain Resistant
2.4.4 Wind Resistant
2.4.5 Acid Resistant
2.5 Appearance
Vesicular
Banded and Glassy
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Flooring, Homes, Interior Decoration
Decorative Aggregates, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
As Facing Stone, Garden Decoration, Paving Stone
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
Landscaping
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
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Sculpture
Artifacts, Jewellery, Monuments
3.4 Other Uses
3.4.1 Commercial Uses
Production of Lime, Soil Conditioner
Creating Artwork, Jewelry
4 Types
4.1 Types
Not Available
Algoma-type , Lake Superior-type and Superior-type
4.2 Features
Host Rock for Lead
Is one of the oldest rock
4.3 Archaeological Significance
4.3.1 Monuments
Not Yet Used
Used
4.3.2 Famous Monuments
Not Applicable
Data Not Available
4.3.3 Sculpture
Used
Not Yet Used
4.3.4 Famous Sculptures
Data Not Available
Not Applicable
4.3.5 Pictographs
Not Used
Used
4.3.6 Petroglyphs
Not Used
Used
4.3.7 Figurines
Used
Not Yet Used
4.4 Fossils
Absent
Present
5 Formation
5.1 Formation
Tephrite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
Jaspillite is a type of sedimentary rock which is formed by the compaction and sedimentation of pieces of broken or weathered rocks and minerals.
5.2 Composition
5.2.1 Mineral Content
Alkali feldspar, Nepheline, Plagioclase, Pyroxene
Coesite, Quartz, Sand
5.2.2 Compound Content
CaO, Carbon Dioxide, MgO, Silicon Dioxide
Fe, Iron(III) Oxide, Silicon Dioxide
5.3 Transformation
5.3.1 Metamorphism
5.3.2 Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Not Applicable
5.3.3 Weathering
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering
5.3.5 Erosion
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion
Chemical Erosion, Coastal Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6.53
Coal
1 7
6.1.2 Grain Size
Medium to Fine Coarse Grained
Large and Coarse Grained
6.1.3 Fracture
Uneven
Conchoidal
6.1.4 Streak
Bluish Black
White
6.1.5 Porosity
Very Less Porous
Very Less Porous
6.1.6 Luster
Subvitreous to Dull
Earthy
6.1.7 Compressive Strength
90.00 N/mm2230.00 N/mm2
What Is Obsidian
0.15 450
6.1.8 Cleavage
Crenulation and Pervasive
Imperfect
6.1.9 Toughness
2.4
Not Available
6.1.10 Specific Gravity
2.865.0-5.3
Granite
0 8.4
6.1.11 Transparency
Opaque
Translucent to Opaque
6.1.12 Density
2.8-2.9 g/cm30-5.7 g/cm3
Granite
0 1400
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
0.92 kJ/Kg K3.20 kJ/Kg K
What Is Granulite
0.14 3.2
6.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Not Yet Found
Russia
7.1.2 Africa
Namibia, Uganda
Not Yet Found
7.1.3 Europe
Germany, Hungary, Italy, Portugal, Spain
Ukraine
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
USA
Canada, USA
7.2.2 South America
Not Yet Found
Brazil
7.3 Deposits in Oceania Continent
7.3.1 Australia
New Zealand, Western Australia
Western Australia

All about Tephrite and Jaspillite Properties

Know all about Tephrite and Jaspillite properties here. All properties of rocks are important as they define the type of rock and its application. Tephrite belongs to Igneous Rocks while Jaspillite belongs to Sedimentary Rocks.Texture of Tephrite is Aphanitic to Porphyritic whereas that of Jaspillite is Banded, Trellis. Tephrite appears Vesicular and Jaspillite appears Banded and Glassy. The luster of Tephrite is subvitreous to dull while that of Jaspillite is earthy. Tephrite is available in black, brown, colourless, green, grey, white colors whereas Jaspillite is available in red, reddish brown colors. The commercial uses of Tephrite are production of lime, soil conditioner and that of Jaspillite are creating artwork, jewelry.