Definition
Aplite is a fine-grained granite composed mainly of feldspar and quartz
Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age
History
Origin
Iran
Western Australia, Minnesota
Discoverer
Unknown
Johann Gottlob Lehmann
Etymology
From German Aplit, from Greek haploos simple + -ite
From its formation process
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
-
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock