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While externally similar shapes, these two minerals are very different inside.
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Oligoclase from
San Martino al Cimino, Viterbo, Viterbo Province, Lazio, Italy


Classification
Species:Albite var: Oligoclase
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Oligoclase data
Locality Data:Click here to view San Martino al Cimino, Viterbo, Viterbo Province, Lazio, Italy
Data Identifiers
Mindat Occurrence Record ID:942016
Long-form Identifier:1:3:942016:8
GUID (UUID V4):0
Nearest other occurrences of Oligoclase
37.4km (23.2 miles) ⓘLatera solfatara, Latera, Viterbo Province, Lazio, Italy
94.2km (58.5 miles) ⓘSiena meteorite, Lucignano d'Asso, Montalcino, Siena Province, Tuscany, Italy
References
Scherillo A. (1940): I proietti con minerali boriferi dei Vulcani Cimini. Per. Mineral., 11, 367-391
Stoppani, F.S., Curti, E. (1982): I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
 
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