a rare mineral or substance that remains stable or crystallizes in extremely cold conditions.
From Greek 'kryos' (cold) + 'phyllon' (leaf) + '-ite' (mineral suffix), likely named for its appearance or formation under cold conditions, though this is an archaic or rare mineralogical term.
This is an obscure mineralogical term rarely used in modern science, but it represents how 19th-century scientists named materials based on the conditions where they were found or formed.
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