Corsi Collection of Decorative Stones

view of stone 319

Corsi 319, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 319  
Name and quarry location: Alabastro sardonico, locality unknown  
Geological description: Compact banded travertine composed of coarsely crystalline calcite coloured red by hematite, adjoining or interbanded with colourless very coarsely crystalline calcite.  
Comments: Alabaster is a term now used for compact gypsum, and sardonyx is the name for translucent brown to red banded agate, a variety of quartz. As a consequence, there is double potential for confusion with the naming of this stone.  
References: Corsi (1845) 134  
Further information: Alabaster-travertine.pdf

Corsi's classification: Class 1. Marbles; Section 4. Concretionary marbles; Species 1. Alabasters; i. Antique alabaster  
Corsi's text: 95.26 Alabastro antico. Marmor Alabastrum. Alabastro sardonico  

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