Last Updated
：2025/11/21
potassium feldspar
（ plural ）
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(mineralogy) Any of several alkaline feldspars containing potassium aluminium silicate, KAlSi₃O₈
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potassium feldspar
The petrologist identified potassium feldspar in the granite under a microscope.
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The petrologist identified potassium feldspar in the granite under a microscope.
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