Earlier this month I was introduced to a small selection of specimens of talc on dolomite from Portreath Beach on the Lizard, Cornwall.
These came to prominence in the Mineralogical Record Show Report for Ste Marie 2017, written up as quote.
Richard was very pleased with his discovery and write up, I purchased a piece to clean up and photograph for the e-Rocks database.
The header shows some detail of the botryoidal habit.
In fact talc is found in a few places on the Lizard, Kennack Sands probably being the best known, the association with dolomite is interesting though.
We did find an earlier talc specimen from Pentreath in our database, also with a curious habit of columnar masses with an acicular silvery breakage pattern.
This piece was in Pearl Freeman's collection.
You can see other pictures of Richard's piece via the item link below.