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Niobophyllite - Mount Malosa, Zomba, Southern Region, Malawi
(#:MINS8735)
Niobophyllite is an extremely rare species containing niobium and titanium, the best of which come from this incredibly interesting REE deposit. This gorgeous specimen show blades of superb, world class crystals sprouting from a minor matrix of quartz and feldspar.
Formula :
(K,Na)
3
(Fe
2+
,Mn
2+
6
)(Nb,Ti)
2
[(O,OH,F)
7
/Si
8
O
24
System:
triclinic
Hardness:
3-4
Rarity:
very rare
Strunz id:VIII/G.12-80 - SILICATES
Name origin:
From its Nb content and phyllos, Greek for leaf, in allusion to its foliated habit.
Specimen weight:10 gr.
Crystal size:Up to 2,5 cm
Overall size: 35mm x 8 mm x 27 mm
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