What is a colorful salt source and what minerals belong to that kind of treasure?

It is estimated that the colored salt source should be an agate produced in Bailing Mountain, hills and peaches in Yanyuan County. Compared with Meigu's south red agate, this agate is darker and more varied in color, including black, pink, green, blue and purple. Known as "colorful agate" by agate lovers, there are many cracks and relatively few fine products. After being hyped by some jade dealers, the price is relatively low.