Aachen. Germany. CM 51, 57-66, 2013. Afmite Al;[(OH) 4 IPO;(OH)l(PO4))'4Hi0 (8.D, turquoise group). Triclinic...Northampton co., Pennsylvania, and from the Kobokobo quarry, near Kamituga, Dern. Rep. of Congo. EJM 23, 269-277...luster vitreous, streak white. Cleav- (8.D, mixite group). Hexagonal, P6/111, a,c = 13.55, age {001} perfect...Czech Rep. Ahrensite Fe2SiO4 (9.A, ringwoodite group). Cubic, FdJm, a= 8.16. d: 2.46(10) - 1.245(8) -...Bi)[CIJ(SO4) 3] (7.B, apatite supergroup, hedyphane group). Hexagonal, P6/m, a,c = 9.63, 6.88, Z = 2. d: 3 |