Description
Very rare jamborite and millerite crystals from Gaggio Montano, near Bologna in Italy.
Specimen delivered with its original label (and explanations).
Millerite occurs as fine grey acicular crystals. Jamborite, with the formula Ni2+1-xCo3+x(OH)2-x(SO4)x – nH2O, occurs as very fine, acicular green crystals, sometimes curved.
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