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ATHENA

MINERALOGY

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Mineral:KENTBROOKSITE
Formula:(Na,REE)15(Ca,REE)6(Mn2+,Fe2+)3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:8/E.25-30
Group:Eudialyte group
References:EJM 10 (1998), 207; CM 37 (1999), 865; CM 41 (2003), 785
Type Locality:Amdrupfjord, Kangerdlugssuaq intrusion, Greenland

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