Outstanding orange crystal group of the very rare rare-earth mineral röntgenite-(Ce) in an completely analyzed specimen by SEM/EDS, from the TL in Greenland (Narssârssuk Pegmatite, Narsaarsuk Plateau, Igaliku, Kujalleq, Greenland). Ex Vandenbroucke Museum collection from Waregem, Belgium. — Photo: David Hospital · CC BY 4.0
Röntgenite-(Ce)
Röntgenite-(Ce) is an IMA-recognized mineral species in the carbonate class, with the chemical formula Ca₂Ce₃(CO₃)₅F₃.
It crystallizes in the hexagonal crystal system (space group R3).
IMA symbol Rng-Ce, IMA status: approved, named in 1953.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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