A textbook example of twinning is well displayed on this unusually attractive specimen. The matrix is also unusual and contrast well with the Cinnabar. This comes from a small, little known mine in the Tongren area of Guizoh Province. Just 30 years ago such specimens were only known in the West from collections built well before 1909, they were legendary and unavailable. Even today with excellent sources this quality is far better than what is normally on the market. Far better in person.