Definition
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.
History
Origin
Iceland
Central Europe
Discoverer
Ian S. E. Carmichael
Unknown
Etymology
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
From Latin granulum, a little grain or fine grained
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
-
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock