Definition
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks
History
Origin
Germany
USA
Discoverer
Christian Leopold von Buch
Unknown
Etymology
From Greek di + base
From silica, the main mineral content of Jasperoid
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
-
Other Categories
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock