"Marrycotter" Amblygonite
I think that it's a name that GemsTV have given to this type of Amblygonite - maybe because it's mined in Maricota, Brazil - but that's purely a guess. I've seen Amblygonite mentioned along with Montebrasite but have never seen it called Maricota before so can't help - soz!
Interesting facts:
1. It's only 5 on the MOHS scale so be careful!
2. Amblygonite was first originally found in the UK in the early 1800s and then later discovered in Brazil, Australia, France, Spain, Germany, California etc