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Titantaramellite: Ba4(Ti,Fe+++,Fe++,Mg)4(B2Si8O27)O2Clx X=0 TO 1, with Ti > Fe
Comments: Dark brownish black titantaramellite crystal in quartz.
Location: Rush Creek, Fresno County, California, USA.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
Titantaramellite: Ba4(Ti,Fe+++,Fe++,Mg)4(B2Si8O27)O2Clx X=0 TO 1, with Ti > Fe Alforsite: Ba5(PO4)3Cl Sanbornite: BaSi2O5 Celsian: BaAl2Si2O8
Comments: SEM image showing alforsite (al). Matrix composed by lamellar sanbornite (sa) and granular quartz (q). Rectangular crystal in the upper right corner is titantaramellite (ti) and isometric crystals included in sanbornite are celsian (ce).
Location: Trumbull Peak, near Incline, Mariposa Co., California, USA.
Scale: See Image.
© Pavel M. Kartashov