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Hello @marion-marshall , nice piece, do you mind sharing what type of prep you did or recommend on this sort of specimen?

I soaked it in Citric Acid solution to get a lot of lime muck off of it, then soaked overnight in baking soda water to deactivate the acid. This has such tiny spaces I can’t use even my finest rotary pen bits on it so I’ve been using a dental pick and large needle (doll making) to gently scrape away matrix between the items.