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Mineral contains: franciscanite
Dunn P J, Peacor D R, Erd R C, Ramik R A (1986) Franciscanite and örebroite, two new minerals from California and Sweden, related to redefined welinite. American Mineralogist 71, 1522-1526
Pertlik F (1986) The crystal structure of franciscanite, Mn3(Vx 1-x)(SiO4)(O,OH)3, [x ~ 0.5]. Neues Jahrbuch für Mineralogie, Monatshefte 1986, 493-499