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ATHENA

MINERALOGY

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Mineral: JEDWABITE
Name: Жедвабит
Formula: Fe7(Ta,Nb)3
Crystal System: Hexagonal
IMA Number: 1995-043
References: ZVMO 126/2 (1997), 100; MR 5 (1998), 472; AM 83 (1998), 654
Type Locality: Aktai River, near Kushva, Nizhnii Tagil, Sverdlovsk (Ekaterinburg), Urals, Russia
Comments: Prof. J.Jedwab (not J.Jedvab or J.Edvab as in ZVMO)
Jedwabite
interstitial (between (Ta,Nb)C and (Nb,Ta)C xls)
Aktai river, Nijni Tagilsk, Ural, Russia
Photo J. Jedwab. Coll. P. Perroud (now in NHM Geneva).
(Scanning electron microscope, back-scattered mode
Length of xl group: 160 micrometer.)
More info: athena.unige.ch -> mineral pictures

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