Definition
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
History
Origin
USA
Strait of sicily
Discoverer
Unknown
Unknown
Etymology
From silica, the main mineral content of Jasperoid
From Pantelleria, a volcanic island in the Strait of Sicily
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock