A rare lead calcium arsenate sulfide mineral with complex crystal structure.
From Greek *hedys* (sweet) plus *phane* (appearing/shining), literally 'sweet-shining.' The name describes the mineral's appearance and was assigned during mineralogical classification.
Hedyphane is so rare that most people will never see one, but mineralogists get to name these beautiful tiny crystals using Greek root words like they're composers naming symphonies—creating a hidden poetry in the periodic table.
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