Location: Sydney, Australia. Found it during bushcare.
The brass barb fitting and the powdery filling suggest some sort of kiln burner to me, but the dark green paint on the outside of the tube looks rather ordinary and not like it has been through high temperatures.
The soft, powdery cemetitious filling has a copper-green tint. Only one end has a hole.
If it were not for the brass barb and coppery fill colour I would assume this is just a bit of structural steel from someone's carport (or similar) that has filled with cement and now been cut to pieces for disposal. But a carport with a barb fitting? WTH?
We find all sorts of garbage in this bushland because it's sandwiched in suburbia. Traditionally it was a dumping ground (mattresses, furniture, asbestos, whole cars) and today still people use it illegally as a dump (mainly building materials and soil). Lots of random materials get deposited by or uncovered by stormwater runoff & floods too. There is no limit to the craziness of what you find here.
Guessing.
Something to do with fluid mixing/filtration/reaction. Fair amount of quick and dirty, not a production item. Low pressure, just a few psi. Water treatment, meth, process prototype, pesticides, agricultural water.
There are green forms of arsenic. Wouldn't go licking it, wash hands after touching. Don't hang on to it.
How would you know that green is arsenic and not copper?
he already suggested to NOT lick it, guess arsenic would cause death upon licking, so he already mentioned how to "know" that but suggested to better stay alive instead 😉
@ @[email protected] : it would be interesting to know if the hole is connected right through to the barb or not, suggesting that the powdery chemicals would have to do sth with the barb, or not. then maybe suggesting some chemical processing.
guessing chemicals by picture and observations is error prone and can be dangerous. if you want to know, send it to a lab. maybe hint it to police mentioning them the meth processing guessed earlier by @[email protected] maybe they'll analyse it and tell you later what it was.
I think if you lick random object you find laying around, you're destined to doom.
but at least they're yours once licked ;-)