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Biotite, Fayalite-Forsterite Series, Hornblende Root Name Group
Specimen ID:
2CD-AGL
Mineral(s)
Biotite
:
K(Fe
2+
/Mg)
2
(Al/Fe
3+
/Mg/Ti)([Si/Al/Fe]
2
Si
2
O
10
)(OH/F)
2
Fayalite-Forsterite Series
Hornblende Root Name Group
:
◻Ca
2
(Z
2+
4
Z
3+
)(AlSi
7
O
22
)(OH,F,Cl)
2
Locality
Mindat locality:
Cupa dell'Olivella, Sant'Anastasia, Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy
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Photos
Events
Photo added to mindat.org
“
Size crystal 3 mm . metamorphic rock
”
Francesco Civero
- 17th June 2013
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