Outstanding bright yellow crystals of the extremely rare mineral Ilmajokite-(Ce) from the type and only known locality worldwide in Rusia (Yubileinaya Pegmatite, Karnasurt Mountain, Lovozero Massif, Murmansk Oblast, Russian Federation) in a whitish contrasting matrix. Named for the Ilmajok River, Russia, located near the type locality. It was originally named simply ilmajokite and renamed in 2020 after new data showed a REE as a species-forming element. Ex Vandenbroucke Museum collection from Waregem, Belgium. — Photo: David Hospital · CC BY 4.0
Ilmajokite-(Ce)
Ilmajokite-(Ce) is an IMA-recognized mineral species in the silicate class, with the chemical formula Na₁₁KBaCe₂Ti₁₂Si₃₇.₅O₉₄(OH)₃₀·29H₂O.
IMA symbol Ijk-Ce, IMA status: approved, named in 1971.
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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