Definition
Origin
Discoverer
Etymology
Class
Sub-Class
Group
Other Categories
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite
From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone
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