Trachyandesite is an extrusive igneous rock.
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular
Black, Brown, Light to Dark Grey
Countertops, Decorative Aggregates, Homes, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration
Building houses or walls, Cobblestones, for Road Aggregate, Rail Track Ballast, Roadstone
Creating Artwork, Pottery
Has High structural resistance against erosion and climate, Very fine grained rock
Archaeological Significance
Trachyandesite 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, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion
Heat Resistant, Pressure Resistant, Wear Resistant
Deposits in Eastern Continents
Deposits in Western Continents
Deposits in Oceania Continent
Learn more about Properties of Trachyandesite
What is Trachyandesite? In this section, we will learn more about properties of Trachyandesite i.e. physical and thermal properties. Physical properties of Trachyandesite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Trachyandesite is 37.40 N/mm2. Streak of Trachyandesite is light to dark brown while its cleavage is perfect. Luster of Trachyandesite is earthy and its fracture is conchoidal. Trachyandesite is opaque in nature. Know all about Trachyandesite, What is Trachyandesite, its composition, features, facts and reserves in next sections.
Know about Composition of Trachyandesite
What is Trachyandesite composed of? Get to know about composition of Trachyandesite here. Trachyandesite definition gives information about the Formation of Trachyandesite and its composition.The composition of Trachyandesite can be further divided into mineral and compound content. The mineral content of Trachyandesite rock includes Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase and The compound content of Trachyandesite rock includes Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide. Almost all rocks undergo transformation process. Know all about Trachyandesite rock in next section.