muscovite
Meaning
Noun
- A pale brown mineral of the mica group, being a basic potassium aluminosilicate with the chemical formula KAl2</sub>(Si3</sub>Al)O10</sub>(OH,F)2; used as an electrical insulator etc.
Origin
- In 1850 from Muscovy glass -ite, from the province Muscovy in Russia. Named by James Dwight Dana.
Modern English dictionary
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