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AF558 - Gaudefroyite $ 750 N'Chwanning Mine, Kuruman, South Africa miniature - 4.5 x 3.5 x 1.5 cm Rare specimen of Gaudefroyite from the Kalahari manganese fields of South Africa. Back when these were being found, they were most commonly seen as thinner, crusy crystals on matrix. To find such thick Gaudefroyite crystals such as these on Manganite matrix were always rare, and even more so now. The crystals reach 13 x 7mm in size. Rare piece. ©2010-2018 Marin Mineral |