Pyrophanite : Mn2+TiO3
Serandite : NaMn2+2Si3O8(OH)
As recorded:
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Photo added to mindat.org
“Picture width 5 mm. Depth achieved with CombineZ.
Collection and Photograph Stephan Wolfsried”
Stephan Wolfsried - 27th May 2005
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