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Kotoite Gallery

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Kotoite : Mg3[BO3]2

Băiţa Mining District (Baita Bihor; Rézbánya), Nucet, Bihor Co., Romania

White massive kotoite. Picture size 8 mm. Photographer and collection Thomas Witzke.
 © Thomas WitzkePhoto ID: 8368    View Count: 692

Kotoite : Mg3[BO3]2, Ludwigite : Mg2Fe3+[O2|BO3], Szaibélyite : Mg2[(OH)(B2O4(OH))]

Nalednoe B Deposit, Tas-Khayakhtakh Range, Dogdo River Basin, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia

Massive coarse-crystalline aggregate of light-grey Kotoite, formed during reaction of B-bearing solutions with layer of pure magnesite. Associating minerals are black fibrous primary Ludwigite and whitish earthy alteration crust (at right) of secondary Szaibelyite. Specimen size is 6.5x4.5x2.5 cm. Collected by Nikolai N. Pertsev. Pavel M. ...
 © Pavel M. KartashovPhoto ID: 140414    View Count: 249
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Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 29th Nov 2009 22:43:29