Definition
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
History
Origin
England
Germany
Discoverer
Unknown
Van Tooren
Etymology
From Italian, literally gravel, Germanic origin and related to break
From Greek tephra, ashes from Indo-European base, to burn
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock