Corsi Collection of Decorative Stones

view of stone 658

Corsi 658, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 658  
Name and quarry location: Pietra dell'Etna, from Mt. Etna, Catania, Sicily, Italy  
Geological description: Basaltic crystal tuff. A dark grey compact well-sorted rock comprising principally plagioclase with minor subhedral crystals of dark green pyroxene and rare partially altered olivine.  
Further information:

Corsi's classification: Class 8. Volcanic stones; ii. Stones from Etna  
Corsi's text: 157.14 Pietra dell'Etna  

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