Definition
Gritstone or grit is a hard, coarse-grained, siliceous sandstone
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight
History
Origin
Pennines, England
Southern Alps, France
Discoverer
J.J. Ferber
Dolomieu
Etymology
From Grit + Stone
From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock
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
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock