phillipite, phillippite

[Etym. uncer tain, but probably after one Phillip or Phillippi; suff. -ite ( Min.).] Min .: A compact, granular mineral, sometimes with fibrous structure, in veins in copper pyrites. Luster, vitreous; color, sky-blue; translucent; astringent. Analysis yielded: Sulphuric acid, 28.96; sesquioxide of iron, 980; iron sub-sulphate, 2-28: protoxide of copper, 14:39; magnesia, 085; water, 4372; alumina, a trace=100. Found in the province of Santiago, Chili. phil-lip-si-a, subst. [Named after Prof. John Phillips, author of many geological books and papers.] Palæont .: A genus of Trilobita. One species is noted by Ethe ridge in the Middle and one in the Upper Devonian beds of South and North Devon. They are of small size, the trilobite type of crusta cean then approaching extinction.