Corsi Collection of Decorative Stones

view of stone 722

Corsi 722, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 722  
Name and quarry location: Aventurine quartz, from Siberia, Russia; or possibly from Egypt  
Geological description: Quartzite coloured by hematite and goethite, in places the grain coatings giving some aventurine effect.  
Comments: Typical aventurine from Siberia, Russia. Price (2007) lists the main sources and notes that only small areas of stone would show the aventurine sparkle, larger items such as vases would not necessarily do so. Aventurine quartz from Egypt can look very similar.  
References: Bauer (1904) 502-503; Corsi (1845) 253-254; Price (2007) 192  
Further information:

Corsi's classification: Class 14. Quartz and its varieties; Species 4. Aventurine  
Corsi's text: 181.3 Avventurine... Proviene dalla Siberia  

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