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Olmiite: CaMn[SiO3(OH)](OH)
Comments: Spherical aggregate of prismatic crystals of pinkish tan olmiite.. Location: N'chwaning II Mine, section 5 south stope, 46-47 roof, Kuruman South Africa. Scale: Specimen size 2.5 × 2 × 1.4 cm. © Fabre Minerals