Mindat Short Description
Smectite Group. Beidellite-Saponite Series. See also the Fe-dominant end-member ferrosaponite.
May be interstratified with lizardite: UM2002-39-SiO:AlCaFeHMg.
Geoscience Ontology Status Notes
Svanberg L F (1842) Saponit och Rosit, tvenne nya mineralier, Kongliga Svenska Vetenskaps-Akademiens Handlingar 1842, 153-165
IMA Formula (from Mindat)
(Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2 · 4H2O
RRUFF Formula (from Geoscience Ontology)
(Ca,Na)0.3(Mg,Fe2+)3(Si,Al)4O10(OH)2·4H2O