Corsi Collection of Decorative Stones

view of stone 596

Corsi 596, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

side view of stone 596

side view of stone 596, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 596  
Name and quarry location: Serpentina verde di Piombino, from Piombino, Livorno, Tuscany, Italy  
Geological description: Green and white-banded L-S tectonite with low-strain augen. It is made almost entirely of narrow prismatic minerals, probably actinolite (green) and clinozoisite (white), strongly aligned in foliae, at high angles to fabric in augen. There are possibly some pyroxene relics in augen. These minerals suggest it could be derived from a rather melanocratic gabbro.  
Comments: Piombino has not been confirmed. This looks very like verde sana ondato, from Piedmont according to Borghini (1997); the stone called serpentina lanceolata di Santo Spirito and possibly from the environs of Susa, according to Dolci & Nista (1992).  
References: Borghini (1997) 294-295; Dolci & Nista (1992) 77, pl.124  
Further information:

Corsi's classification: Class 7. Serpentines; ii. Common serpentines  
Corsi's text: 149.21 Verde di Piombino  

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