I got the impression that this is bismuth. I remember that I saw before and it is very similar. If it was the size of a person it would look incredible. It would be a popular place for selfie :)
It is really worth noting that the first thing that rushes into the galaz is a variety of colors and relics. The yellow color on which the focus is made is highlighted among the rest. He attracts attention most of all and thanks to this creates the feeling of an "expensive" subject.
On the other hand, there is a slight feeling that this object is wrapped in a multicolored foil. But this is not so. If this is what I think then this crystal really has unusual properties. In addition, he is handsome and has a threshold of fragility. A rare and beautiful creation of nature.
Thank you! Good photo!