Definition
Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
History
Origin
New Zealand
Pike County, U.S
Discoverer
Belsazar Hacquet
Unknown
Etymology
From lime and stone in late 14th Century
From French, from peridot + -ite
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock