Definition
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
History
Origin
Hawaii Islands
Strait of sicily
Discoverer
Unknown
Unknown
Etymology
From Greek pikros bitter + -ite, 19th century
From Pantelleria, a volcanic island in the Strait of Sicily
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
Fine Grained Rock, Opaque Rock