Definition
An iron rich extrusive rock found as a member of the alkali basalt magma series
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
History
Origin
Isle of Mull, Scotland
Germany
Discoverer
Ben More
Van Tooren
Etymology
From the name of discoverer, Ben More
From Greek tephra, ashes from Indo-European base, to burn
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, Fine Grained Rock, Medium Grained Rock, Opaque Rock