Definition
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
History
Origin
Iceland
Romania and Moldova, Europe
Discoverer
Ian S. E. Carmichael
Unknown
Etymology
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock