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
An iron rich extrusive rock found as a member of the alkali basalt magma series
History
Origin
France
Isle of Mull, Scotland
Discoverer
Unknown
Ben More
Etymology
From Latin varius, speckled, variegated
From the name of discoverer, Ben More
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Volcanic
Other Categories
Opaque Rock
Fine Grained Rock, Opaque Rock