Vitrophyre
Sign in to savethumb|Example of a rhyolite|rhyolitic vitrophyre; large phenocrysts are set in the black glassy matrix
In the Vinony graph
Within Vinony's link graph, Vitrophyre is referenced by 25 other articles, and connects out to International Standard Book Number, obsidian and rhyolite.
It is catalogued under the topic Volcanic rocks.
Its subject is documented across 5 Wikipedia language editions.
Wikidata facts
- Subclass of
- volcanic rock
- Image
- Vitrophyre (Mount Belknap Volcanic Series, Lower Miocene, 18.9 Ma; Marysvale Valley, Piute County, Utah, USA) 2.jpg
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- Commons category
- Vitrophyre
via Wikidata · CC0
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Encyclopedic overview
2 sectionsContents
- See also
- References
thumb|Example of a rhyolite|rhyolitic vitrophyre; large phenocrysts are set in the black glassy matrix
A vitrophyre is a porphyritic volcanic rock in which phenocrysts are embedded in a glassy matrix. Vitrophyres are contrasted from typical porphyritic rocks in that the latter has both crystalline phenocrysts (larger grains) and a crystalline matrix (smaller grains), whereas the former has a distinctly glassy matrix. Vitrophyres can be alternatively described as rocks having vitrophyric texture. This texture results from the rapid quenching of a lava where phenocrysts had started to form prior to eruption.
Excerpted from Wikipedia’s “Vitrophyre” article, available under the CC BY-SA 4.0 licence.