Definition
Gritstone or grit is a hard, coarse-grained, siliceous sandstone
Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate
History
Origin
Pennines, England
New Zealand
Discoverer
J.J. Ferber
Belsazar Hacquet
Etymology
From Grit + Stone
From lime and stone in late 14th Century
Class
Sedimentary Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock