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Davyne - San Sebastiano - Monte Somma - Somma-Vesuvius Complex - Naples Prov. - Campania - Italy (TYPE LOCALITY)
(#:MINS9056)
Italian Classic. Cluster of clear prismatic exagonal Davyne xls up to 2.5 mm with adamantine luster in a vug of matrix from the type locality.
Formula :
(Na,K)
6
Ca
2
[(Cl
2
,SO
4
)
2
/Al
6
Si
6
O
24
]
System:
hexagonal
Hardness:
6
Rarity:
very rare
Strunz id:8/J.09-20 - 8 : Silicates
Name origin:
For Sir Humphrey Davy (1778-1829), English chemist
Specimen weight:0 gr.
Crystal size:Up to 2.5 mm
Overall size: 41mm x 25 mm x 30 mm
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