Ferric-ferronyboite Image
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Ferric-ferronyboite
Mineral:
Ferric-ferronyboite
:
NaNa2(Fe++)3(Fe+++)2(Si7Al)O22(OH)2
Comments:
Black granular-prismatic masses of ferric-ferronyboite. Associated minerals are white albite and beige zircon.
Location:
Abdong (Aptong) Zr-Nb deposit, Pyonggang-gun, Kangwon Province, North Korea.
Scale:
Picture Size 12x10 mm.
Copyright:
©
Pavel M. Kartashov
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