Tefrito

right|thumb|Leucite tephrite from Mayen, [[Eifel, Germany]] 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. The absence of olivine distinguishes them from the otherwise similar basanite. Its parameters are defined in the QAPF diagram. Occurrences include leucite nepheline tephrite from Hamberg bei Neckarelz near Heidelberg, Germany, phonolite-tephrite

In the Vinony graph

Within Vinony's link graph, Tefrito is referenced by 205 other articles, and connects out to porphyry, aphanite and quartz monzonite.

It is catalogued under the topic Volcanic rocks.

Its subject is documented across 15 Wikipedia language editions.

Wikidata facts

Image: Mayener Basaltlava.jpg

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different from: tephroite

Sources (3)

via Wikidata · CC0

Article · Português

Tefrito é uma rocha ígnea vulcânica (extrusiva), com textura afanítica a porfiroide. A sua composição mineralógica inclui geralmente feldspatoides abundantes (leucite ou nefelina), plagioclase, e em menor quantidade feldspatos alcalinos. As piroxenas (clinopiroxenas) são minerais acessórios comuns. Não contêm quartzo ou olivina. Ocorrências conhecidas inckuem o tefrito de leucite-nefelina de Hamberg bei Neckarelz perto de Heidelberg, Alemanha, fonolito-tefrito de , Basilicata, Itália e intrusões de basanito–tefrito na Namíbia.

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