Re: Bazhenovite

2001-09-14 Thread Uwe Kolitsch
Dear Armel, obviously the structure of bazhenovite is unknown (although bright orange to yellow, tabular xls up to 5 mm were reported). The mineral is said to be the monoclinic analog of the synthetic rhombic compound CaS5.CaS2O3.6Ca(OH)2.20H2O (Lutz, H. D. et al, 1969). I don't know

Bazhenovite

2001-09-10 Thread Armel Le Bail
Hello, Any opinion of the eminent mineralogists members of this mailing list welcome about bazhenovite (ICDD-JCPDS card No 42-1361 and 22-0154) Ca8S5(S2O3)(OH)12.(H2O)20 Is the structure determined ? If not, are the cell and space group dubious or not ? Anyway, is the compound stable in air