Definition
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
History
Origin
England
Romania and Moldova, Europe
Discoverer
Unknown
Unknown
Etymology
From Italian, literally gravel, Germanic origin and related to break
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock