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Niobophyllite, Feldspar Group, Aegirine


Niobophyllite : (K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31, Feldspar Group, Aegirine : NaFe3+[Si2O6]

Photo Copyright © Rob Lavinsky & irocks.com  - This image is copyrighted. Unauthorized reproduction prohibited.
I have followed, or so I thought, the new finds out of Mt Maloso for the past 7-8 years pretty well. In that time, I have had lots of aegerine and arfvedsonite, zircon, parisite, etc etc....but I had never seen one of these and in fact I'd never even heard of the species before now and had to go look it up: it is a titanium and niobium-containing fluorosilicate, nicely complex and interesting. It was only recently reported (Lapis, 2003) from this new locality for the species. I am told that these are the best, compared to previous occurences. This piece features tightly packed, bladed crystals of a rusty orange color, accented by feldspar and aegerine. It is quite non-ugly in person, surprisingly enough. 2.8 x 2 x 1.5 cm



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