Corsi Collection of Decorative Stones

view of stone 851

Corsi 851, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 851  
Name and quarry location: Granito delle Alpi, from the Alps  
Geological description: Hornblende granodiorite. Grey, equigranular. Faint alignment of feldspars. Uralitic alteration of amphibole. Larger plagioclases zoned outwards to untwinned feldspar. Occasional sphene visible with lens.  
Comments: This locality has not been confirmed.  
Further information:

Corsi's classification: Class 16. Granites; ii. Italian granites  
Corsi's text: 209.3 Granito delle Alpi  

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