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Hiortdahlite from
Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy


Locality type:Quarry
Classification
Species:Hiortdahlite
Formula:Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Comments:- Hiortdahlite-1
- Solid solutions between monoclinic cuspidine and pseudo-monoclinic hiortdahlite-2.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hiortdahlite data
Locality Data:Click here to view Vispi Quarry, San Venanzo, Terni Province, Umbria, Italy
Data Identifiers
Mindat Occurrence Record ID:305634
Long-form Identifier:1:3:305634:9
GUID (UUID V4):0
References
Sharygin, Victor V., Stoppa, Francesco, Kolesovc, Boris A. (1996) Zr-Ti disilicates from the Pian di Celle volcano, Umbria, Italy. European Journal of Mineralogy, 8 (5) 1199-1212 doi:10.1127/ejm/8/5/1199
Stoppa, F., Schiazza, M. (2014) Extreme chemical conditions of crystallisation of Umbrian Melilitolites and wealth of rare, late stage/hydrothermal minerals. Open Geosciences, 6 (4). doi:10.2478/s13533-012-0190-z
 
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