Definition
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
History
Origin
Strait of sicily
Germany
Discoverer
Unknown
Van Tooren
Etymology
From Pantelleria, a volcanic island in the Strait of Sicily
From Greek tephra, ashes from Indo-European base, to burn
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock