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An term used earlier in igneous nomenclature for an igneous rock, consisting mostly of sanidine. To avoid conflict with the metamorphic usage it should not be used for igneous rocks. Locally, for example in Italy, the term “sanidinite” is still used for a subvolcanic rock consisting mostly of sanidine.
Classification of Sanidinite (igneous)Hide
Mineralogy of Sanidinite (igneous)Hide
Essential minerals - these are minerals that are required within the classification of this rock: