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Synchysite-(Ce) from Kamuderkeusche, Stallhofen, Moosburg, Klagenfurt-Land District, Carinthia, Austria
F2A-VX1Synchysite-(Ce) CaCe(CO3)2F , Bastnäsite-(Ce) Ce(CO3)F , Monazite-(Ce) Ce(PO4) , Siderite FeCO3 , Ankerite Ca(Fe2+,Mg)(CO3)2
Kamuderkeusche, Stallhofen, Moosburg, Klagenfurt-Land District, Carinthia, AustriaLargest Crystal Size: 3 ÎĽm
Synchysite-(Ce) (bright grey) intergrown with bastnäsite-(Ce) (white, SE of centre) and monazite-(Ce) (white, NW of centre). In siderite (grey), adjacent to ankerite (dark grey). Hydrothermal alteration of monazite-(Ce) via CO2-bearing fluids has probably caused the crystallisation of the REE carbonates, a process known from many ores and rocks.
SEM micrograph (BSE mode) of a polished section of a galena-bearing siderite-ankerite ore sample.
Collection NHM Vienna, image U. Kolitsch.
This material was described in:
Kolitsch, U. (2026): 2367) Allanit-(Ce), Allanit-(Nd), Annit, Bastnäsit-(Ce), Cerussit, Monazit-(Ce), Monazit-(Nd), Parisit-(Ce), Pyrargyrit, Sphalerit, Synchisit-(Ce), Thorit und Zoubekit(?) von der Kamuderkeusche bei Stallhofen, Moosburg, Kärnten. Pp. 410-415 in Walter, F. et al. (2026): Neue Mineralfunde aus Österreich LXXV. Carinthia II, 216./136., 397-506.
160-V83Parisite-(Ce) CaCe2(CO3)3F2 , Synchysite-(Ce) CaCe(CO3)2F , Siderite FeCO3 , Ankerite Ca(Fe2+,Mg)(CO3)2
Kamuderkeusche, Stallhofen, Moosburg, Klagenfurt-Land District, Carinthia, AustriaLargest Crystal Size: 2 ÎĽm
Parisite-(Ce) (white) syntactically intergrown with synchysite-(Ce) (bright), in siderite (grey) and adjacent to ankerite (dark grey, top right).
SEM micrograph (BSE mode) of a polished section of a galena-bearing siderite-ankerite ore sample.
Collection NHM Vienna, image U. Kolitsch.
This material was described in:
Kolitsch, U. (2026): 2367) Allanit-(Ce), Allanit-(Nd), Annit, Bastnäsit-(Ce), Cerussit, Monazit-(Ce), Monazit-(Nd), Parisit-(Ce), Pyrargyrit, Sphalerit, Synchisit-(Ce), Thorit und Zoubekit(?) von der Kamuderkeusche bei Stallhofen, Moosburg, Kärnten. Pp. 410-415 in Walter, F. et al. (2026): Neue Mineralfunde aus Österreich LXXV. Carinthia II, 216./136., 397-506.

