Definition
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
Origin
Western Australia, Minnesota
Germany
Discoverer
Unknown
Van Tooren
Etymology
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
From Greek tephra, ashes from Indo-European base, to burn
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Group
Not Applicable
Volcanic
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Texture
Banded, Trellis
Aphanitic to Porphyritic
Color
Red, Reddish Brown
Black, Brown, Colourless, Green, Grey, White
Durability
Durable
Durable
Appearance
Banded and Glassy
Vesicular
Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Flooring, Homes, Interior Decoration
Exterior Uses
As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
Other Architectural Uses
Curbing
Curbing
Construction Industry
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
Landscaping
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Jewellery, Monuments
Artifacts, Sculpture
Commercial Uses
Creating Artwork, Jewelry
Production of Lime, Soil Conditioner
Types
Algoma-type , Lake Superior-type and Superior-type
Not Available
Features
Is one of the oldest rock
Host Rock for Lead
Archaeological Significance
Monuments
Used
Not Yet Used
Famous Monuments
Data Not Available
Not Applicable
Sculpture
Not Yet Used
Used
Famous Sculptures
Not Applicable
Data Not Available
Pictographs
Used
Not Used
Petroglyphs
Used
Not Used
Figurines
Not Yet Used
Used
Formation
Jaspillite is a type of sedimentary rock which is formed by the compaction and sedimentation of pieces of broken or weathered rocks and minerals.
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.
Mineral Content
Coesite, Quartz, Sand
Alkali feldspar, Nepheline, Plagioclase, Pyroxene
Compound Content
Fe, Iron(III) Oxide, Silicon Dioxide
CaO, Carbon Dioxide, MgO, Silicon Dioxide
Types of Metamorphism
Not Applicable
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
Chemical Erosion, Coastal Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion
Grain Size
Large and Coarse Grained
Medium to Fine Coarse Grained
Fracture
Conchoidal
Uneven
Streak
White
Bluish Black
Porosity
Very Less Porous
Very Less Porous
Luster
Earthy
Subvitreous to Dull
Cleavage
Imperfect
Crenulation and Pervasive
Toughness
Not Available
2.4
Specific Gravity
5.0-5.3
2.86
Transparency
Translucent to Opaque
Opaque
Density
0-5.7 g/cm3
2.8-2.9 g/cm3
Resistance
Heat Resistant, Impact Resistant, Wear Resistant
Heat Resistant, Impact Resistant
Deposits in Eastern Continents
Asia
Russia
Not Yet Found
Africa
Not Yet Found
Namibia, Uganda
Europe
Ukraine
Germany, Hungary, Italy, Portugal, Spain
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
Canada, USA
USA
South America
Brazil
Not Yet Found
Deposits in Oceania Continent
Australia
Western Australia
New Zealand, Western Australia
Jaspillite vs Tephrite 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. Jaspillite vs Tephrite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Jaspillite and Properties of Tephrite. Learn more about Jaspillite vs Tephrite in the next section. The interior uses of Jaspillite include Decorative aggregates and Interior decoration whereas the interior uses of Tephrite include Decorative aggregates, Flooring, Homes and Interior decoration. Due to some exceptional properties of Jaspillite and Tephrite, they have various applications in construction industry. The uses of Jaspillite in construction industry 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 and that of Tephrite include Landscaping.
More about Jaspillite and Tephrite
Here you can know more about Jaspillite and Tephrite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Jaspillite and Tephrite consists of mineral content and compound content. The mineral content of Jaspillite includes Coesite, Quartz, Sand and mineral content of Tephrite includes Alkali feldspar, Nepheline, Plagioclase, Pyroxene. You can also check out the list of all Sedimentary Rocks. When we have to compare Jaspillite vs Tephrite, the texture, color and appearance plays an important role in determining the type of rock. Jaspillite is available in red, reddish brown colors whereas, Tephrite is available in black, brown, colourless, green, grey, white colors. Appearance of Jaspillite is Banded and Glassy and that of Tephrite is Vesicular. Properties of rock is another aspect for Jaspillite vs Tephrite. The hardness of Jaspillite is 3 and that of Tephrite is 6.5. The types of Jaspillite are Algoma-type , Lake Superior-type and Superior-type whereas types of Tephrite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Jaspillite is white while that of Tephrite is bluish black. The specific heat capacity of Jaspillite is 3.20 kJ/Kg K and that of Tephrite is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Jaspillite is heat resistant, impact resistant, wear resistant whereas Tephrite is heat resistant, impact resistant.