I love going to the last page on search engines. You find so many neat things. This article seems to have some relation to the mysterious jelly like substance known as Gur.
http://www.wired.co.uk/news/archive/2013-02/19/rspb-slime/viewgallery/294010
If you find Gur on the ground then save it,combine it part of it with gold leaf as soon as possible and set it in a BM bath. If it dissolves gold and turns black then you should let it go through the color changes. If it turns red then you have the stone prepared all you need to do is let it dry. The other part you saved might be able to be grown as a culture. If it's true then you can grow philosopher's stone in a flask.
Edit: A google image search on "Star Jelly" turns up hundreds of pictures of this mysterious Gur like substance.