Definition
Origin
Discoverer
Etymology
Class
Sub-Class
Group
Other Categories
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
From French, from peridot + -ite
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Opaque Rock
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
Fine Grained Rock, Opaque Rock