Voltaite and pickeringite - La Fossa Crater - Faraglione Nico - Porto Levante -Vulcano Island - Eolie Islands - Messina Prov. - Sicily - Italy
(#GM19053)
The surface of this specimen is covered by black and brilliant cristals of Voltaite, that is an uncommon sulphate of K + Fe + Al.
Some white areas of pickeringite are ...
Specimen weight:93 gr.
Crystal size:mm. 2
 Overall size:45mm x 22 mm x 23 mm
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Owner : GMineral (Voghera - Italy)