Marcasite
Colcerasa Quarry, Colcerasa, Cingoli, Macerata Province, Marche, Italy
12.0 x 10.1 x 6.1 cm. Rich curved clusters of sharp, moderately bronzy marcasite crystals dramatically march across the large marly limestone matrix on this rich and showy piece from late 1980s finds at this well-known Italian quarry complex. Specimens of this size, richness and quality are very uncommon. Ex Dr. Barratt Phillips Collection.
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