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Rhyolitoid

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About RhyolitoidHide

Felsites (acid volcanic rocks) tentatively identified as rhyolite, with felsic minerals comprising >20% quartz and alkali feldspar/plagioclase 40-100%


Classification of RhyolitoidHide

Rhyolitic rocks appear in fields 2 and 3 in the QAPF diagram.

Rhyolitic rocks are found in field 'R' in the TAS diagram.

Sub-divisions of RhyolitoidHide

Mineralogy of RhyolitoidHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali FeldsparFeldspar Group minerals rich in Potassium or Sodium.
Silica > QuartzSiO2

Synonyms of RhyolitoidHide

Internet Links for RhyolitoidHide

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