Definition
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
Aplite is a fine-grained granite composed mainly of feldspar and quartz
History
Origin
Pike County, U.S
Iran
Discoverer
Unknown
Unknown
Etymology
From French, from peridot + -ite
From German Aplit, from Greek haploos simple + -ite
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Plutonic
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock