Definition
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
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
History
Origin
Adak, Aleutian Islands
Pike County, U.S
Discoverer
Defant and Drummond
Unknown
Etymology
From Adak, Aleutian Islands
From French, from peridot + -ite
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Plutonic
Other Categories
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock