Pantellerite
Pantellerite is a type of volcanic rock, specifically a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite. It is named after Pantelleria, a volcanic island in the Strait of Sicily and the type location for this rock. On Pantelleria the rock is usually found as a vitrophyre containing phenocrysts of anorthoclase or sanidine. Quartz is found only in the most strongly peralkaline rocks. Mafic minerals may include aegirine, fayalite, aenigmatite, ilmenite, and sodic amphibole.
Occurrence
;North America- Mount Edziza volcanic complex, northwestern British Columbia, Canada
- Ilgachuz Range, west-central British Columbia, Canada
- La Reforma, Baja California Peninsula, Mexico
- Level Mountain, northwestern British Columbia, Canada
- Mount Berlin, Marie Byrd Land
- Mount Moulton, Marie Byrd Land
- Mount Noice, Victoria Land
- Udokan Plateau, Russia
- Dabbahu Volcano, Afar Region, Ethiopia
- Ma Alalta, Afar Region, Ethiopia
- Tat Ali, Afar Region, Ethiopia