Dims: 2.89x1.88x0.98" (7.34x4.76x2.48cm)
Wt: 3.87oz (109.6h)
Khibiny Massif, Kola Peninsula, Russia
This specimen is perhaps 25% eudialyte, and the specimen has been cut flat on its base and one face, which has been polished to a high luster. The eudialyte is a deep maroon color, and is translucent, even transparent in some areas. The host rock contains multiple minerals. It has many acicular black crystals, some of which are in radial clusters. I am thinking that they are aegirine, although I cannot be certain. Another mineral is translucent white with right-angle cleavage fractures and this is likely one of the plagioclase feldspars, as there appears to be a patch of quartz which would make the presence of nepheline unlikely.