Analcim (eng. + greece álkimos 'strong') is a colourless mineral, white or light-pink skalenoid[?] with glassy shine; "hydrated alsilicon of soda" (uwodniony glinokrzemian sodu)
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National Museum of Photography, Film and Television, Bradford
Royal Armouries Museum[?], Leeds
West Yorkshire Folk Museum[?]
Yorkshire
Bronte Museum[?], ...