Probably jamesonite; Cook and Damian (1997) could find no evidence of it.
Habit:
rounded columnar xls with no terminations
Colour:
grey
UV Fluorescence:
?
Quality of samples:
not specified / average specimens
Confirmation
Validity:
Believed Valid
References
References:
[Cook N.J., Damian Gh., New data on "Plumosite" and Other Sulfosalt Minerals from the Herja Vein Deposit, Baia Mare Dist., Romania, Geologica Carphathica, (1997)]
