Description
Species: Kesterite, Mushistonite, Muscovite
Locality: Mount Xuebaoding, Songpan County, Sichuan Province, China
Size: 23 x 12.5 x 6.5 cm.
Exceptional specimen of the rare tin species kesterite with the typical green coating of the rare tin hydroxide species mushistonite, occuring as dozens of sharp, undamaged crystals to ~1.5 cm. on well-crystallized muscovite matrix from Mount Xuebaoding, China. This is one of the largest and richest examples of this rare mineral I have ever seen, truly impressive for this species! Wow! Mark Cross photo.