This is the Shijiangshanite specimen, from Inner Mongolia, China. Shijiangshanite is a newfound special Trigonal mineral by Chinese scientist team in 2022, which contain elements: Pb, Ca, Al, Si, O, H. This specimen wide around 7.5cm, many small pale red Shijiangshanite crystals covered on the white matrix, strong contrast. This is a specimen with a large number of crystals and important scientific significance!