Millerite n. (Min.) A sulphide of nickel, commonly occurring in delicate capillary crystals, also in incrustations of a bronze yellow; sometimes called hair pyrites.
... to see the Millennium," remarked Aunt 'Mira as she went back across town with Mr. Day. "I had a great-aunt that was a Millerite and give away all her things an' climbed up on to the house roof expectin' the end of the world an' to be caught up into Glory—only she fell off the roof an' broke her hip an' the world didn't ... — The Mission of Janice Day • Helen Beecher Long