Corsi Collection of Decorative Stones

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view of stone 692

Corsi 692, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

side view of stone 692

side view of stone 692, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 692  
Name and quarry location: Breccia di Roma, from Rome, Lazio, Italy  
Geological description: Polymict conglomerate of diverse limestones and minor chert/chalcedony clasts, fairly well sorted and elongate with some alignment. Matrix is extensively spotted with Fe/Mn, with dendrites around rims of some clasts.  
Comments: Clast on reverse of specimen does not efferv. with HCl, contains radiolaria?  
References:  
Further information:
 


Corsi's classification: Class 10. Pudding-stones; ii. Italian pudding-stones  
Corsi's text: 165.10 Breccia di Roma  

Full entry in English

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