Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock 0
From Greek tephra, ashes from Indo-European base, to burn 0
Durable Rock, Hard Rock 0
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock 0
Aphanitic to Porphyritic 0
Black, Brown, Colourless, Green, Grey, White 0
Decorative Aggregates, Flooring, Homes, Interior Decoration 0
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings 0
Production of Lime, Soil Conditioner 0
Archaeological Significance
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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. 0
Alkali feldspar, Nepheline, Plagioclase, Pyroxene 0
CaO, Carbon Dioxide, MgO, Silicon Dioxide 0
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism 0
Biological Weathering, Chemical Weathering, Mechanical Weathering 0
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion 0
Medium to Fine Coarse Grained 0
Crenulation and Pervasive 0
Heat Resistant, Impact Resistant 0
Deposits in Eastern Continents
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Germany, Hungary, Italy, Portugal, Spain 0
Deposits in Western Continents
0
Deposits in Oceania Continent
0
New Zealand, Western Australia 0
Learn more about Properties of Tephrite
What is Tephrite? In this section, we will learn more about properties of Tephrite i.e. physical and thermal properties. Physical properties of Tephrite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Tephrite is 90.00 N/mm2. Streak of Tephrite is bluish black while its cleavage is crenulation and pervasive. Luster of Tephrite is subvitreous to dull and its fracture is uneven. Tephrite is opaque in nature. Know all about Tephrite, What is Tephrite, its composition, features, facts and reserves in next sections.
Know about Composition of Tephrite
What is Tephrite composed of? Get to know about composition of Tephrite here. Tephrite definition gives information about the Formation of Tephrite and its composition.The composition of Tephrite can be further divided into mineral and compound content. The mineral content of Tephrite rock includes Alkali feldspar, Nepheline, Plagioclase, Pyroxene and The compound content of Tephrite rock includes CaO, Carbon Dioxide, MgO, Silicon Dioxide. Almost all rocks undergo transformation process. Know all about Tephrite rock in next section.