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