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A syenitic-rock where plagioclase is less than 10% of the total feldspar.
Classification of Alkali-feldspar-syeniteHide
Sub-divisions of Alkali-feldspar-syeniteHide
Mineralogy of Alkali-feldspar-syeniteHide
Essential minerals - these are minerals that are required within the classification of this rock:
|Feldspar > Alkali Feldspar||A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.|
Non-essential minerals - these minerals are common, sometimes major components, but are not always present: