D defs.my
Entry 1 sense Webster, 1913

Derbyshire spar

/dẽrb'-ēsh-ẽrˌ spär/ · Der·by·shire spar · IPA
01 A massive variety of fluor spar, found in Derbyshire, England, and wrought into vases and other ornamental work.
  1. 1.
    A massive variety of fluor spar, found in Derbyshire, England, and wrought into vases and other ornamental work.(Min.)