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Comments: Moderate reddish tint to yellowish poldervaartite crystalline druze on matrix.
Location: N'chwaning II mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari desert, South Africa.
Scale: 6 x 3.5 x 4 cm.
© Fabre Minerals
Poldervaartite: (Ca,Mn++)2SiO3(OH)2 Bultfonteinite: Ca2SiO2(OH,F)4
Comments: Bow-tie clusters of white, acicular bultfonteinite and blocky, beige-colored poldervaartite on matrix.
Location: N'Chwaning mine, South Africa.
Scale: picture size 4 cm.
© John Veevaert