Muscovite

I'm a Muscovite.

His wife is a Muscovite.

Her husband is a Muscovite.

Do you enjoy the amber glow seen through the isinglass window of a wood stove? […] Muscovite (colorless, white, or pale red or green) mica is also common[…]; it was named for Moskva (Moscow), where much of Europe's mica was mined. Isinglass, mentioned above, consists of thin, transparent sheets of muscovite.