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Trachydacite

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A rocktype intermediate between phonolite and dacite, similar to trachyte, but notably has >20% quartz.


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Classification of TrachydaciteHide

Trachydacite is found in field T in the TAS diagram.

Mineralogy of TrachydaciteHide

Essential minerals - these are minerals that are required within the classification of this rock:

Internet Links for TrachydaciteHide

Mineral and/or Locality  
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