Definition
Origin
Discoverer
Etymology
Class
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Other Categories
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
From Pantelleria, a volcanic island in the Strait of Sicily
Fine Grained Rock, Opaque Rock
Hawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite
Durable Rock, Medium Hardness Rock