Item talk:Q162351
From geokb
Mindat Short Description
The Mn analogue is known as 'UM1987-19-SiO:FeHMgMnTi'.
Geoscience Ontology Status Notes
Agrell S O, Bown M G, McKie D (1965) Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville District, Mendicino Co., California, American Mineralogist 50, 278-278
IMA Formula (from Mindat)
Fe2+6Fe3+3(Si6O17)O3(OH)5
RRUFF Formula (from Geoscience Ontology)
Fe2+6Fe3+3(Si6O17)O3(OH)5
