Pietra dura


  • Webster's Revised Unabridged Dictionary
    • Pietra dura (Fine Arts) Hard and fine stones in general, such as are used for inlay and the like, as distinguished from the softer stones used in building; thus, a Florentine mosaic is a familiar instance of work in pietra dura, though the ground may be soft marble.
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Webster's Revised Unabridged Dictionary
It., hard stone


In literature:

PIETRA DURA, a name given to the purest kind of Florentine mosaic work, consists of hard stones characterised by brilliancy of colour.
"The Nuttall Encyclopaedia" by Edited by Rev. James Wood