Classification |
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Species: | Hellandite-(Ce) |
Formula: | (Ca,REE)4Ce2Al◻2(B4Si4O22) (OH)2 |
Confirmation |
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Validity: | Valid - Type Locality |
Associated Minerals Based on Photo Data: |
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Britholite-(Ce) | ⓘ3 photos of Hellandite-(Ce) associated with Britholite-(Ce) at this locality. |
Magnetite | ⓘ3 photos of Hellandite-(Ce) associated with Magnetite at this locality. |
Titanite | ⓘ2 photos of Hellandite-(Ce) associated with Titanite at this locality. |
Fluorophlogopite | ⓘ1 photo of Hellandite-(Ce) associated with Fluorophlogopite at this locality. |
Nosean | ⓘ1 photo of Hellandite-(Ce) associated with Nosean at this locality. |
Data |
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Mineral Data: | Click here to view Hellandite-(Ce) data |
Locality Data: | Click here to view Campo Padella, Capranica, Viterbo Province, Lazio, Italy |
Photo Gallery | View Gallery (7 photos) |
Data Identifiers |
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Mindat Occurrence Record ID: | 281522 |
Long-form Identifier: | 1:3:281522:0 |
GUID (UUID V4): | a637d872-5f86-4341-b040-9f3ef76708f2 |
Nearest other occurrences of Hellandite-(Ce) |
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2.1km (1.3 miles) | ⓘCassia Road km 61.5, Capranica, Viterbo Province, Lazio, Italy |
8.0km (5.0 miles) | ⓘTre Croci, Vetralla, Viterbo Province, Lazio, Italy |
10.4km (6.5 miles) | ⓘPian di San Martino, Vetralla, Viterbo Province, Lazio, Italy |
26.7km (16.6 miles) | ⓘPianciano carbonatite, Cerveteri, Metropolitan City of Rome Capital, Lazio, Italy |
28.7km (17.9 miles) | ⓘBiachella Valley, Sacrofano, Metropolitan City of Rome Capital, Lazio, Italy |
References |
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Della Ventura, Giancarlo, Williams, C. Terry, Cabella, Roberto, Oberti, Roberta, Caprilli, Enrico, Bellatreccia, Fabio (1999) Britholite-hellandite intergrowths and associated REE-minerals from the alkali-syenitic ejecta of the Vico volcanic complex (Latium, Italy): petrological implications bearing on REE mobility in volcanic systems. European Journal of Mineralogy, 11 (5) 843-854 doi:10.1127/ejm/11/5/0843 Oberti, Roberta, Ventura, Giancarlo Della, Ottolini, Luisa, Hawthorne, Frank C., Bonazzi, Paola (2002) Re-definition, nomenclature and crystal-chemistry of the hellandite group. American Mineralogist, 87 (5) 745-752 doi:10.2138/am-2002-5-618 |
Campo Padella, Capranica, Viterbo Province, Lazio, Italy