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
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
History
Origin
France
European Foreland Basins
Discoverer
Unknown
Arnold H. Bouma
Etymology
From Latin varius, speckled, variegated
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Family
Group
Volcanic
-
Other Categories
Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock