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Definition of Johnsomervilleite
1. Noun. (minerology) A dark, brittle, vitreous mineral comprising mostly iron, phosphorus, and oxygen. ¹
¹ Source: wiktionary.com
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1. Noun. (minerology) A dark, brittle, vitreous mineral comprising mostly iron, phosphorus, and oxygen. ¹
¹ Source: wiktionary.com