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A granitoid (a coarse grained igneous rock composed mostly of quartz (20-60%), Kspar (alkali-feldspar) and plagioclase), where plagioclase is >90% of the total feldspar on the QAPF diagram.
Classification of TonaliteHide
Sub-divisions of TonaliteHide
Mineralogy of TonaliteHide
Essential minerals - these are minerals that are required within the classification of this rock:
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Pronounciation of TonaliteHide
|Jolyon & Katya Ralph||United Kingdom|