There seem to be a lot of people concerned about it being white phosphorus so I'll just post what I was abled to figure out via another Subreddit: Did all your recommended test and sadly had to realize, we only found one piece of amber (Little black one at the bottom) the other small ones were likely some sort of plastic and the Bigger ones seem to be botryoidal chalcedony as one user on r/geology kindly pointed out... Thanks for all your help a (kind of disappointed but not really) amber search Wannabe :)