Викиавтор:EmausBot

This user account is a bot operated by Emaus (talk). It is not a sock puppet, but rather an automated or semi-automated account for making repetitive edits that would be extremely tedious to do manually. Administrators: if this bot is malfunctioning or causing harm, please block it.

This is the crystal of bismuth

And this is the talk page of bot's owner

another picture

ak:User:EmausBot