Definition
Origin
Discoverer
Etymology
Class
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Other Categories
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
From Italian, literally gravel, Germanic origin and related to break
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture
From Tonale Pass, northern Italy, + -ite1
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock