1 Definition
1.1 Definition
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene
1.2 History
1.2.1 Origin
1.3.2 Discoverer
1.4 Etymology
From French, from peridot + -ite
From early 19th century coined in French, formed irregularly from Greek diorizein distinguish
1.5 Class
Igneous Rocks
Igneous Rocks
1.5.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.6 Family
1.6.1 Group
1.7 Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock