OUMNH Number: | 730 |
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Name and quarry location: | Agata del San Stefano, from Santo Stefano Quisquina, Agrigento Sicily, Italy; or more probably quarzo di Monterufoli, from Monterufoli, near Pomarance, Pisa, Tuscany, Italy |
Geological description: | Brecciated agate, colourless crystalline quartz cement with spherular limonitic inclusions. Agate-lined quartz-filled fractures. |
Comments: | Agates and jaspers do come from Santo Stefano Quisquina, Province of Agrigento, Sicily, Italy, according to Jervis (1881), but Corsi's specimen matches very closely sample 526 in the Pescetto Collection of the Servizio Geologico d'Italia described as from 'Monte Rufoli (Volterra)?' (Corpo reale delle Miniere, 1904). It is more brecciated than Corsi 742 'breccia di Siena' which is clearly from the same locality. |
References: | Corpo reale delle Miniere (1904) 74; Jervis (1881) 226. Other examples: Pescetto no. 526. |
Further information: |
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Corsi's classification: | Class 14. Quartz and its varieties; Species 5. Agate |
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Corsi's text: | 184.8 Agata di S.Stefano in Sicilia |