Quartz-diorite
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A dioritic rock with 0-10% quartz and 10-35% alkali feldspar on the QAPF diagram.
Classification of Quartz-diorite
Quartz-diorite is in section 10* of the QAPF diagram.
Sub-divisions of Quartz-diorite
Mineralogy of Quartz-diorite
Essential minerals - these are minerals that are required within the classification of this rock:
| Feldspar > Plagioclase | A petrological term for Albite-Anorthite Series. |
| Silica > Quartz | SiO2 |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
| Feldspar > Alkali Feldspar | Feldspar Group minerals rich in Potassium or Sodium. |
Internet Links for Quartz-diorite
mindat.org URL:
https://www.mindat.org/min-48251.html
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