| | Description | |
| Comments: | Grotta d\\\'Oggi quarry - Isola Elba is the type localite for this mineral. It has been found up to now in several quarries (all closed) on Isola Elba and the Grotta d\\\'Oggi quarry is the hystorical one. Other location on Elba for these minerals | | Quality of samples: | Good crystals or rich for species - important (!) | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Barsotti, G., & Nannoni, R. (2006). Rocce, minerali e miniere delle isole dell'Arcipelago Toscano. Pacini editore, 152 pp. | | Data | |
| Mineral Data: | Click here to view Orthoclase data | | Locality Data: | Click here to view Grotta d'Oggi Quarry, San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy |
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