Definition
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
Aplite is a fine-grained granite composed mainly of feldspar and quartz
History
Origin
Romania and Moldova, Europe
Iran
Discoverer
Unknown
Unknown
Etymology
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
From German Aplit, from Greek haploos simple + -ite
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
Plutonic
Other Categories
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock