Not seeing Heaton fawn or black cherry, OP looks more like a slag than anything IMO ??
MC LINK :: https://marbleconnection.com/topic/26001-named-heaton-types/
AAM LINK to named Heaton types :: https://www.allaboutmarbles.com/viewtopic.php?f=5&t=46247&hilit=named+Heaton&start=25
Both links are almost identical, Chuck S. @cheese posted them on both forums.
Heaton Black Cherry has an opaque white base
Heaton Fawns