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Kainosite-(Y): Ca2(Y,Ce)2Si4O12(CO3)·(H2O)
Comments: Group of reddish brown kainosite-(Y) crystals on fluorite. Location: Seula mine (ex Montecatini quarry), Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy. Scale: Crystal Size 1.6 mm. © Sergio Varvello / Mineral Service
Kainosite-(Y): Ca2(Y,Ce)2Si4O12(CO3)·(H2O) Ferriallanite-(Ce): CaCe(Fe+++,Fe++,Al)3[SiO4][Si2O7]O(OH)
Comments: Short prismatic black crystals of ferriallanite-(Ce) in white slightly weathered kainosite-(Y). Orange prisms are zircons of the first generation. Fragment of the holotype specimen. Location: Neprimetnyi pegmatite, Mount Ulyn Khuren, Khaldzan Buragtag Massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia. Scale: Crystal Size 2 mm. © Pavel M. Kartashov