I saw this or similar weed in Geelong, Vic about 3 months ago
I can't tell you what it is but watching my mate smoke it was enough make me refrain.
The cone wouldn't 'pull', the weed just sizzled and stuck together as a pile of oily ash
It's sad to hear there is lots of this around
There have scarcely been some dodgy adulterants in weed over the years but for the most part it's very safe.
Some dealers in Europe were putting lead in their weed to add extra weight which in tun gave smokers lead poisoning 8)
http://forums.cannabisculture.com/forums/ubbthreads.php?ubb=showflat&Number=1402958
I was told that stuff was cut with gravox and epsom salts.
Very skeptical, but none the less it was difficult to smoke, very harsh, sizzled in the cone, rarely pulled through and cut up really small.
I will say one thing though, it got you a really heavy fucking stoned.