ekdemite

[ Gr.ekdēmos =unusual, and suff. -ite ( Min.) (q.v.).] Min.: An arsenate and chloride of lead, Pb5Ar2O8 +2PbCl2. Hardne , 2.5 to 3; specific gravity 7'14; luster, vitreous to greasy; color, bright yellow to green; ma ive and crystalline. From Langban, Wermland, Sweden. Described by Nordenskiöld in 1877. ( Thos . Davies , F. G. S. )