Definition
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism
History
Origin
Iceland
England
Discoverer
Ian S. E. Carmichael
Abraham Gottlob Werner
Etymology
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
From Old French esclate, from esclat (French éclat)
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
-
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock