Niobophyllite (K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31
Mount Malosa, Zomba, Southern Region, Malawi
It's the rare Nb-rich analogue of astrophyllite
On minerals in general, an essential guide:
MINÉRAUX – LE GUIDE DES PASSIONNÉS – JULIEN LEBOCEY
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Reference9731
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Dimension






