 | | Journal (article/letter/editorial) | | to 50 X 50 cm in schlieren of alkali granite pegmatite of the Khan-Bogdinskii massif, Mongolia; which...granite with xenoliths of acid volcanic rocks. The pegmatite consists of quartz, microcline, albite, aegirine...pettern is indexed on a rhombohedral cell, space group R3m, unit cell (hexagonal setting) of the analyzed...The mineral occurs in nodules in the Kobokobo pegmatite, Kivu, Congo Republic (Kinshasa), associated with...puzzling questions on the source of the cyanide group. There is no doubt that it is introduced by surface |  | | Book (edition) | | Al;[(OH) 4 IPO;(OH)l(PO4))'4Hi0 (8.D, turquoise group). Triclinic, PT, a,b,c = 7.39, 7.72, ll.34,a,p,y=99°46'...Pennsylvania, and from the Kobokobo quarry, near Kamituga, Dern. Rep. of Congo. EJM 23, 269-277, 2011. ...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 |  | | Book (volume) | | spectroscopy. Several examples are given below. Eudialyte-group minerals are trigonal zirconoand titanosilicates...threefold symmetry. CO32 -dominant minerals of this group with different occupation of N-sites, mogovidite...from 1,350 to 1,550 cm1 (Fig. 1.1). A cancrinite-group mineral kyanoxalite, Na7(Al6–5Si6–7O24)(C2O4)0.5–1·5H2O... Fig. 1.1 IR spectra of high-calcium eudialyte-group minerals from alkaline pegmatites of the Kovdor...first ammonium arsenate mineral of the autunite group uramarsite discovered in the Bota-Burum U deposit |
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