Witherite

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Witherite \With"er*ite\, n. [So called after Dr. W. Withering.]
     (Min.)
     Barium carbonate occurring in white or gray six-sided twin
     crystals, and also in columnar or granular masses.
     [1913 Webster]