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Definition of Tokkoite
1. Noun. (minerology) A triclinic-pinacoidal mineral containing calcium, fluorine, hydrogen, oxygen, potassium, and silicon. ¹
¹ Source: wiktionary.com
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1. Noun. (minerology) A triclinic-pinacoidal mineral containing calcium, fluorine, hydrogen, oxygen, potassium, and silicon. ¹
¹ Source: wiktionary.com