Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs
From Adak, Aleutian Islands
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Black, Brown, Light to Dark Grey
Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens
As Building Stone, As Facing Stone, Office Buildings
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
Monuments, Sculpture, Small Figurines
Commemorative Tablets, Pottery, Used in aquariums
Intermediate volcanic rock
Has High structural resistance against erosion and climate, Host rock for Diamond, Very fine grained rock
Archaeological Significance
Adakite rocks are formed when the hydrous fluids are released from minerals that break down in metamorphosed basalt, and rise into the mantle they initiate partial melting.
Olivine, Plagioclase, Pyroxene
Aluminium Oxide, MgO, Silicon Dioxide
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Chemical Weathering, Mechanical Weathering
Coastal Erosion, Sea Erosion, Water Erosion
Grainy, Pearly and Vitreous
Heat Resistant, Pressure Resistant, Wear Resistant
Deposits in Eastern Continents
Ethiopia, Somalia, South Africa
Deposits in Western Continents
Deposits in Oceania Continent
Learn more about Properties of Adakite
What is Adakite? In this section, we will learn more about properties of Adakite i.e. physical and thermal properties. Physical properties of Adakite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Adakite is 200.00 N/mm2. Streak of Adakite is bluish black while its cleavage is . Luster of Adakite is grainy, pearly and vitreous and its fracture is conchoidal. Adakite is opaque in nature. Know all about Adakite, What is Adakite, its composition, features, facts and reserves in next sections.
Know about Composition of Adakite
What is Adakite composed of? Get to know about composition of Adakite here. Adakite definition gives information about the Formation of Adakite and its composition.The composition of Adakite can be further divided into mineral and compound content. The mineral content of Adakite rock includes Olivine, Plagioclase, Pyroxene and The compound content of Adakite rock includes Aluminium Oxide, MgO, Silicon Dioxide. Almost all rocks undergo transformation process. Know all about Adakite rock in next section.