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Tephrite is an igneous, volcanic (extrusive) rock, with aphanitic to porphyritic texture. Mineral content is usually abundant feldspathoids (leucite or nepheline), plagioclase, and lesser alkali feldspar. Pyroxenes (clinopyroxenes) are common accessory minerals. Quartz and olivine are absent. Occurrences include leucite nepheline tephrite from Hamberg bei Neckarelz near Heidelberg, Germany, tephritic phonolite to phonolite in lapilli of Mount Vesuvius, Italy, phonolite-tephrite at Monte Vulture, Basilicata, Italy and basanite–tephrite intrusions in Namibia.
- Frenzel, Gerhard (1953) Die Erzparagenese des Katzenbuckels im Odenwald, Contributions to Mineralogy and Petrology, Volume 3, Number 6, pages 409-444, DOI: 10.1007/BF01129196 (in German). Retrieved 2012-04-11.
- Stoppa, Francesco; Principe, Claudia; Schiazza, Mariangela; Liu, Yu; Giosa, Paola; Crocetti, Sergio (2017-03-15). "Magma evolution inside the 1631 Vesuvius magma chamber and eruption triggering". Open Geosciences. 9 (1): 24–52. doi:10.1515/geo-2017-0003. ISSN 2391-5447.
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