Twinned marcasite / sperkise - Cap Blanc-Nez, Pas-de-Calais,...
Marcasite with numerous well-expressed spearhead twins...
Marcasite in crystallized nodule on matrix of limestone, lustrous and presenting numerous spearhead twins (sperkise), from Cap Blanc-Nez in Pas-de-Calais department (France).
4,5 x 4,5 x 3,5 cm.
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Marcasite with numerous well-expressed spearhead twins...
Marcasite in crystallized nodule presenting numerous spearhead...
Marcasite in crystallized nodule presenting numerous spearhead...
Small marcasite nodule with numerous spearhead twins...
Small marcasite nodule with numerous well-expressed spearhead...