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Lorenzenite: Na2Ti2Si2O9 Orthoclase: KAlSi3O8
Comments: Striated, dark violet crystal of lorenzenite in cream-colored orthoclase.
Location: Khibiny Massif, Kola Peninsula, Russia.
Scale: 1.3 x 1.2 cm.
© John Veevaert
Lorenzenite: Na2Ti2Si2O9 Vuonnemite: Na11Nb2TiSi4O12(PO4)2O5F2
Comments: Square vuonnemite crystal with brown, lorenzenite crystals in syenite rock.
Location: Ilimaussaq, Greenland.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species