Pilsenite cleavage?

Does anyone know if pilsenite has a cleavage? The data on the net is not clear, some say yes some no.

the minerals of the group that pilsenite is have perfect cleavage on {0001}. I will say that pilsenite is a rather elusive species. All the ones I have analyzed turned out to be something else, such as joseites, tetradymite or ikunolite...

Thank you Frank.

Bill Plavic gave me a sample of Pilsenite from the Little Ben Gold Mine, near Matheson, Ontario. The fact that pilsenite has a perfect cleavage makes it a possibility since my sample does. Trouble is I haven't been able to find any references to that mine let alone the occurrence of Pilsenite there. Roger Poulin (Rogers Minerals) is selling Tellurobismuthite from that mine which looks a lot like pilsenite.
The sample I have is very small and only has a couple grains ( max. 1mm) in white quartz so to be sure that would only leave microprobe as a means of ID, not worth the expense for such a small amount though. I hope to go there collecting next summer. Maybe I can pick up enough samples to make IDing worth while. Assuming I find some, would you be interested in IDing it in exchange for some samples?

There used to be nearly 40 names in this lot and thankfully some have been discredited. The problem is that this group is so uncommon and variable in chemstry and structure that each locality generated a new name. In addition to the variable solid state solutions, the situation is now complicated by the recognition of homologous series. To add injury to insult, the material is so deformable that it can lead to ambiguous x-ray diffractions. With the variable chemstry of every deposit, single xl and probe work is required to nail them. But then you know what you've x-rayed and probed but not what the xl that grew beside it is. These are sods to sort out just like the aikenite-like minerals.

The most recent work I can find on these is Can. Min. 45, Part 4, pp 665-708 (2007)

As Rob nicely illustrates, there's no way to tell apart the minerals of the tetradymite group without analytical methods, often combined. All of them have perfect cleavage.

Lefteris.