Min. [Named 1852, from Huel Towan in Cornwall: see -ITE1.] An obsolete synonym of CHALCOPYRITE.

1

1852.  Brooke & Miller, Phillips’ Introd. Min., 182. Bornite … occurs in beds and veins in the older rocks with towanite [etc.].

2

1878.  Gurney, Crystallogr., 79. Towanite or Copper Pyrites is a double sulphide of copper and iron.

3