Corsi Collection of Decorative Stones

view of stone 558

Corsi 558, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 558  
Name and quarry location: 'Arenaria di Corsica'; Corsica, France, is not confirmed.  
Geological description: Impure medium-grained calcite marble, containing disseminated crystals of green chlorite and brown ferruginous matter which show a marked foliation.  
Comments: This, based on appearance alone, looks like a typical green aventurine of platy chlorite crystals disseminated in a quartzite. However, as the scratches on the face of the specimen suggest, the colourless crystals in this sample are a softer mineral, calcite. It may be from Corsica, but it could be from a deposit of cipollino marble, from Euboea, Greece or elsewhere. elsewhere.  
Further information:

Corsi's classification: Class 4. Sandstones  
Corsi's text: 137.6 Arenaria di Corsica  

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