| | Journal (article/letter/editorial) | in a peralkaline rhyolitic ignimbrite from Pantelleria, Italy 1,* 1 _ BOGUSŁAW BAGINSKI , RAY MACDONALD1...peralkaline rhyolitic ignimbrite from the island of Pantelleria, Italy. The mineral formed during devitrification...Key-words: tuhualite: peralkaline ignimbrite; Pantelleria; compositional variation; conditions of formation...(∼130 ka present) from the type locality, Mayor Island, New Zealand (Marshall, 1932, 1936), and in a 390–392...rather simple; it has similarities, for example, to aegirine (NaFe3þSi2O6). The scarcity also means that very |
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