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Foidite: Mineral information, data and localities.
https://www.mindat.org/min-48512.html
Fine grained igneous rocks that contain <90% mafics and foids >90% of felsics. Classification of Foidite Hide Rock Igneous rock Normal crystalline igneous rock Fine-grained ("volcanic") normal crystalline igneous rock Foiditoid Foidite Foidite appears in field 15c in the QAPF diagram. Foiditie is found in field F in the TAS diagram.
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Foidolite - Wikipedia
https://en.wikipedia.org/wiki/Foidolite
Foidolite is a rare phaneritic (coarse-grained) intrusive igneous rock in which more than 60% (by volume) of light-coloured minerals are feldspathoids. Crystals of alkali feldspar, plagioclase, biotite, amphibole, pyroxene, and/or olivine may be present within the rock. The volcanic equivalents are termed foidite and phonolitic or tephritic foidites.
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Foidit - Wikiwand
https://www.wikiwand.com/de/Foidit
Foidite sind Gesteine vulkanischen Ursprungs, welche aus Mineralen der Foidgruppe und variablen Gehalten an Feldspäten und dunklen Mineralen bestehen. Bei niedrigerem Foid- und höherem Feldspatgehalt gehen die Foidite s. str. zu den phonolithischen Foiditen bzw. tephritischen Foiditen über. Foidite gehören zur Gruppe der Alkaligesteine.
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Foidolite – Geology is the Way
https://geologyistheway.com/igneous/foidolite/
Foidolites are a group of very rare silica-undersaturated plutonic igneous rock dominated by feldspathoids which constitute more than 60% of the felsic minerals present. Other constituents of foidolites include alkali feldspar and plagioclase, mafic minerals like biotite, hornblende, pyroxene, and olivine, and accessory minerals.
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Foidite
https://ncptt.nps.gov/buildingstone/stone-type-lithologic/foidite
Find out how to send us a sample to be added to the collection. send us stone. Any use of trade, product, or firm names on this website is for descriptive purposes only and does not imply endorsement by the National Park Service.
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Tephritic-foidite: Mineral information, data and localities.
https://www.mindat.org/min-48535.html
Foiditic rocks, with felsics comprising 60-90% foids and alkali feldspar/total feldspar <0.5, olivine <10% Hide all sections | Show all sections Classification of Tephritic-foidite Hide Rock Igneous rock Normal crystalline igneous rock Fine-grained ("volcanic") normal crystalline igneous rock Foiditoid Tephritic-foidite
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Foidite | Spanish Translator
https://www.spanishdict.com/translate/foidite
Translate Foidite. See Spanish-English translations with audio pronunciations, examples, and word-by-word explanations.
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foidite | An Armchair Volcanologist
https://thearmchairvolcanologist.com/tag/foidite/
Jun 09, 2021 · It is the low silica foidites that make her lava’s so fluid, despite the volcano being a stratovolcano. These lavas can reach a speed of 60 – 100 km per hour and, unlike most lavas, cannot be outrun. The edifice, itself, is built of lava flows interspersed with pyroclastics. Mount Nyiragongo’s Historic Eruptions
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ALEX STREKEISEN-Nepheline Foidite-
http://www.alexstrekeisen.it/english/vulc/nephelinefoidites.php
Foidites: A general term for volcanic rocks containing more than 60% foids in total light-coloured constituents. Alkaline rocks In petrology, the term alkaline is used to describe those rocks that contain essential amounts of foids …
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