Corsi Collection of Decorative Stones

view of stone 528

Corsi 528, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 528  
Name and quarry location: Pietra paesina, from Civitavecchia, Rome, Lazio, Italy  
Geological description: Micritic limestone or calcareous marl from the Cretaceous-Eocene Alberese Formation. Calcite-filled microfractures control iron-staining, giving the 'paesina' effect. Minor dendritic manganese oxides emanate from the fractures.  
Comments: This most probably comes from the Tolfa Mountains a few miles north of Civitavecchia, an occurrence of pietra paesina described by Civitelli in 1970. Pietra paesina has been found in the Monterano nature reserve.  
References: Civitelli et al (1970); Marko (2003); McBride (2003); Price (2007) 101-103  
Further information:

Corsi's classification: Class 1. Marbles; Section 6. Argillaceous stones; iii. Ruin marbles  
Corsi's text: 131.1 Paesina di Civitavecchia  

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