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Manganite: MnO(OH) Vaterite: CaCO3 Defernite: Ca6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x=0,5)
Comments: Opaque white fibrous vaterite with red defernite and black manganite. Location: Kombat Mine, Otavi, Otjozondjupa, Namibia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Manganite: MnO(OH)
Comments: Lustrous feathery crystals of manganite to 0.75 cm. Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 7.8 x 4.2 cm. © John Veevaert
Manganite: MnO(OH) Sudoite: Mg2(Al,Fe+++)3Si3AlO10(OH)8
Comments: Pinkish to nearly white earthy sudoite with dark manganite. Location: Ilfeld, Nordhausen, Erfurt district, Harz Mts, Thuringia, Germany. Scale: Picture size 4 mm. © Thomas Witzke / Abraxas-Verlag