Trondhjemite (Q43728)

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Revision as of 19:58, 5 July 2023 by Sky (talk | contribs) (‎Changed an Item: Changed Mindat identifier to long form in instance of classification qualifier)
A leucotonalite whose plagioclase is oligoclase or andesine, quartz is at least 20% of the leucocratic minerals, and the alkali feldspar must comprise no more than 10% of the total feldspars
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Trondhjemite
A leucotonalite whose plagioclase is oligoclase or andesine, quartz is at least 20% of the leucocratic minerals, and the alkali feldspar must comprise no more than 10% of the total feldspars

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