Definition
Origin
Discoverer
Etymology
Class
Sub-Class
Group
Other Categories
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
Romania and Moldova, Europe
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Adamellite is a coarse-grained porphyritic igneous rock, a variety of Monzogranite and dominated by phenocrysts of orthoclase in a granular groundmass of perthite, plagioclase and quartz
From German adamellit and from Monte Adamello, a mountain in Italy, its locality
Coarse Grained Rock, Opaque Rock