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[Sante Celiberti]

Hi, Dany.

I'm fine too, thank you. And I also miss my usual mineral shows...
As for your gypsum, if you don't see any pyrite traces and, moreover, you see some dissolution patterns you can be sure it comes from Roccastrada and not from Niccioleta.
I've handled hundreds of specimens from both localities and many dozens are in my collection.
Crystals from the many other localities in Grosseto province don't show that size associated with that habit.

Un bon week-end à toi aussi.

[Dany Mabillard]