Millerite /(?)/

Mil·ler·ite

Millerite

n.
  1. A believer in the doctrine of William Miller (d. 1849), who taught that the end of the world and the second coming of Christ were at hand.

Millerite

n.
  1. A sulphide of nickel, commonly occurring in delicate capillary crystals, also in incrustations of a bronze yellow; -- sometimes called hair pyrites. (Min.)