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Trachytoid

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Rocks tentatively identified as trachyte, with felsics comprising <20% quartz, <10%foids and plagioclase/alkali feldspar <2.


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Classification of TrachytoidHide

Rock ➔ Igneous rock ➔ Normal crystalline igneous rock ➔ Fine-grained ("volcanic") normal crystalline igneous rock ➔ Trachytoid

Trachytic-rock appears in fields 6,6*,6',7,7*,7',8,8* and 8' in the QAPF diagram.

Trachytic-rock is found in fields S1, S2, S3 and T in the TAS diagram [glossary item missing].

Sub-divisions of TrachytoidHide

Synonyms of TrachytoidHide

Other Language Names for TrachytoidHide

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