Definition
Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock
History
Origin
New Zealand
Iceland
Discoverer
Belsazar Hacquet
Ian S. E. Carmichael
Etymology
From lime and stone in late 14th Century
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
-
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock