Definition
Origin
Discoverer
Etymology
Class
Sub-Class
Group
Other Categories
Sandstone is defined as a rock which is composed of sand-sized grains of various minerals mostly of uniform size and often are smooth and rounded
From its composition, sand and stone
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.
From Cornish gossen from gos, blood from Old Cornish guit
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock