1 Formation
1.1 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.
1.2 Composition
1.2.1 Mineral Content
Alkali feldspar, Nepheline, Plagioclase, Pyroxene
1.2.2 Compound Content
CaO, Carbon Dioxide, MgO, Silicon Dioxide
1.3 Transformation
1.3.1 Metamorphism
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97% - Igneous Rocks Rocks have it !
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1.3.2 Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
1.3.3 Weathering
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99% - Igneous Rocks Rocks have it !
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1.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
1.3.5 Erosion
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92% - Igneous Rocks Rocks have it !
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1.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion