Definition
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.
Gritstone or grit is a hard, coarse-grained, siliceous sandstone
History
Origin
Indonesia
Pennines, England
Discoverer
Cornish Gossen
J.J. Ferber
Etymology
From Cornish gossen from gos, blood from Old Cornish guit
From Grit + Stone
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
-
-
Other Categories
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock