Corsi 507, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History
| OUMNH Number: | 507 |
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| Name and quarry location: | Pietra paesina, from Florence, Tuscany, Italy; and most probably from Valdarno |
| Geological description: | Micritic limestone or calcareous marl from the Cretaceous Alberese Formation, with red hematitic specks and stylolites. Calcite-filled microfractures control iron-staining. Some dendritic Mn oxides emanate from the fractures. |
| Comments: | A fair example of 'pietra paesina', most probably from Valdarno, south-east of Florence. Loose boulders of this stone have been widely used for decorative purposes for many centuries. |
| References: | Marko (2003); McBride (2003); Price (2007) 101-103 |
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| Corsi's classification: | Class 1. Marbles; Section 6. Argillaceous stones; i. Common clays |
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| Corsi's text: | 128.8 Argilla di Firenze |