1 Definition
1.1 Definition
Monzonite is a granular igneous rock with composition between syenite and diorite and containing approximately equal amounts of orthoclase and plagioclase
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents
1.2 History
1.2.1 Origin
Trento Province, Italy
USA
1.2.2 Discoverer
1.3 Etymology
From Mount Monzoni in the Tyrol, Italy, + -ite1
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock