Pantelleritic rhyolite
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A variety of peralkaline rhyolite of TAS field R in which Al2O3 <1.33 x total iron as FeO + 4.4.
A peralkaline rhyolite or quartz trachyte with normative quartz exceeding 10%. It is more mafic than comendite.
A peralkaline rhyolite or quartz trachyte with normative quartz exceeding 10%. It is more mafic than comendite.
Classification of Pantelleritic rhyolite
- Rock
- Igneous rock
- Normal crystalline igneous rock
- Fine-grained ("volcanic") normal crystalline igneous rock
- Rhyolitoid
- Rhyolite
- Pantelleritic rhyolite
- Rhyolite
- Acid volcanic rock
- Rhyolite
- Pantelleritic rhyolite
- Rhyolite
- Rhyolitoid
- Fine-grained ("volcanic") normal crystalline igneous rock
- Normal crystalline igneous rock
- Igneous rock
![QAPF_V_3.png](https://web.archive.org/web/20221017182440im_/https://www.mindat.org/diagrams/cache/QAPF_V_3.png)
Rhyolite appears in field 3 in the QAPF diagram.
![TAS_R.png](https://web.archive.org/web/20221017182440im_/https://www.mindat.org/diagrams/cache/TAS_R.png)
Rhyolite is found in field 'R' in the TAS diagram.
Mineralogy of Pantelleritic rhyolite
Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali Feldspar | A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium. |
Silica > Quartz | SiO2 |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Alkali pyroxene | A petrological name for the sodium-rich pyroxenes aegirine and aegirine-augite. |
Amphibole | (Na, K, ◻)(Ca,Na)2(Mg,Fe,Al)5((Si,Al)8O22)(OH,F,Cl,O)2 |
Feldspar > Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Synonyms of Pantelleritic rhyolite
Internet Links for Pantelleritic rhyolite
mindat.org URL:
https://www.mindat.org/min-48456.html
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