Definition
An iron rich extrusive rock found as a member of the alkali basalt magma series
Rhyolite is a fine-grained igneous rock which is rich in silica
History
Origin
Isle of Mull, Scotland
North America
Discoverer
Ben More
Ferdinand von Richthofen
Etymology
From the name of discoverer, Ben More
From German Rhyolit, from Greek rhuax lava stream + lithos stone
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock