Definition
Origin
Discoverer
Etymology
Class
Sub-Class
Group
Other Categories
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
Christian Leopold von Buch
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz
From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock