Definition
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
History
Origin
Germany
European Foreland Basins
Discoverer
Van Tooren
Arnold H. Bouma
Etymology
From Greek tephra, ashes from Indo-European base, to burn
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
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Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock