Livingstonite
It is very well visible on the photo, that this brightred cinnabar replacing crystals of metallicgrey livingstonite. Stibnite also may be replaced with red powdery alteration products metastibnite amorphous Sb2S3. But it never is so bright and has brownishred colour. FOV is ~ cm. Collected by Nikolai Frishman before 1988. Pavel M. ...