Definition
Monzonite is a granular igneous rock with composition between syenite and diorite and containing approximately equal amounts of orthoclase and plagioclase
Gritstone or grit is a hard, coarse-grained, siliceous sandstone
History
Origin
Trento Province, Italy
Pennines, England
Discoverer
Unknown
J.J. Ferber
Etymology
From Mount Monzoni in the Tyrol, Italy, + -ite1
From Grit + Stone
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock