Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
From Greek tephra, ashes from Indo-European base, to burn
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Black, Brown, Green, Grey, White
Decorative Aggregates, Flooring, Homes, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
Production of Lime, Soil Conditioner
Archaeological Significance
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.
Alkali feldspar, Nepheline, Plagioclase, Pyroxene
CaO, Carbon Dioxide, MgO, Silicon Dioxide
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion
Medium to Fine Coarse Grained
Crenulation and Pervasive
Heat Resistant, Impact Resistant
Deposits in Eastern Continents
Germany, Hungary, Italy, Portugal, Spain
Deposits in Western Continents
Deposits in Oceania Continent
New Zealand, Western Australia
Information about Tephrite
Rocks are naturally occurring solids which are composed of minerals & have been used by humans since ages. From Stone Age, rocks are used for various purposes. Also, the metals and minerals found in rock play an important role in our life. Get to know all the Tephrite Uses. We have provided you with all information about Tephrite rock here. Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock. Tephrite is available in black, brown, green, grey, white colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Tephrite is bluish black. Get to know more about Tephrite rock and characteristics of Tephrite rock in the next sections.