Definition
Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
History
Origin
New Zealand
Tamil Nadu, India
Discoverer
Belsazar Hacquet
T. H. Holland
Etymology
From lime and stone in late 14th Century
From Job Charnock, an administtrator of East India Company
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
-
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock