Millerite
From BiblePortal Wikipedia
Millerite [1]
(1): ( n.) 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.
(2): ( n.) A sulphide of nickel, commonly occurring in delicate capillary crystals, also in incrustations of a bronze yellow; - sometimes called hair pyrites.
