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Uvarovite from
Scerscen Valley, Lanzada, Lanterna Valley, Malenco Valley, Valtellina, Sondrio Province, Lombardy, Italy

Locality type:Valley
Classification
Species:Uvarovite
Formula:Ca3Cr2(SiO4)3
Comments:Emerald-green crystals in chromitite fissures, traditionally considered "uvarovite" (Tabacchi, 1972, and other authors), are actually chromian andradite with a content in Cr2O3 varying inside the crystals from 9.6% in the core to 0.8% at the rim (Bedognè et al., 1993; Sciesa, 1993).
Confirmation
Validity:Erroneously Reported
References
References:Tabacchi C. (1972) Le cave di amianto abbandonate in località Vallone di Scerscen (Val Malenco, Sondrio). Notizie del Gruppo Mineral. Lombardo, 4, 88-89. (This publication later changed its name in Rivista Minealogica Italiana)
Bedognè, F., Montrasio, A., Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
Sciesa, E. (1993) Le cromititi della Valmalenco (Alpi Centrali). Il Naturalista Valtellinese - Atti Mus. civ. Stor. nat. Morbegno, 4, 3-9.
Data
Mineral Data:Click here to view Uvarovite data
Locality Data:Click here to view Scerscen Valley, Lanzada, Lanterna Valley, Malenco Valley, Valtellina, Sondrio Province, Lombardy, Italy
 
Mineral and/or Locality  
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