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Domite

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A local name for a variety of trachyte that contains a few phenocrysts of oligoclase and biotite in a potentially quartz-bearing glassy groundmass.


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Classification of DomiteHide

QAPF_V_7.png

Trachyte appears in field 7 in the QAPF diagram.

TAS_T.png

Trachyte is found in field T in the TAS diagram.

Mineralogy of DomiteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Plagioclase > Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
GlassAn amorphous, homogeneous material with a random liquid-like structure generally formed due to rapid cooling.
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:

References for DomiteHide

Reference List:
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Le Maitre (ed.) (2002) Igneous Rocks - A Classification and Glossary of Terms. Cambridge Press

Internet Links for DomiteHide

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https://www.mindat.org/min-51141.html
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