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While externally similar shapes, these two minerals are very different inside.
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Phillipsite-K from
Tre Croci, Vetralla, Viterbo Province, Lazio, Italy


Locality type:Village
Classification
Species:Phillipsite-K
Formula:K6(Si10Al6)O32 · 12H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Phillipsite-K data
Locality Data:Click here to view Tre Croci, Vetralla, Viterbo Province, Lazio, Italy
Data Identifiers
Mindat Occurrence Record ID:916110
Long-form Identifier:1:3:916110:8
GUID (UUID V4):0
Nearest other occurrences of Phillipsite-K
40.6km (25.3 miles) ⓘMontenero Quarry, Onano, Viterbo Province, Lazio, Italy
45.1km (28.1 miles) ⓘCase Collina, Pitigliano, Grosseto Province, Tuscany, Italy
64.9km (40.3 miles) ⓘCapo di Bove, Rome, Metropolitan City of Rome Capital, Lazio, Italy
70.3km (43.7 miles) ⓘOsa Quarry, Osteria dell'Osa, Rome, Metropolitan City of Rome Capital, Lazio, Italy
75.9km (47.1 miles) ⓘLaghetto quarries, Laghetto (Laghetto di Montecompatri), Monte Compatri, Metropolitan City of Rome Capital, Lazio, Italy
References
Ciriotti, M.E. & Biagioni, C. (2011): Pot-pourri 2011: identificazioni di minerali di interesse. Micro, 3/2011, 125-133
 
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