Definition
Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
History
Origin
France
England
Discoverer
Unknown
Unknown
Etymology
From Latin varius, speckled, variegated
From Italian, literally gravel, Germanic origin and related to break
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
-
Other Categories
Opaque Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock