Expected Behaviour
Being a block that drops something other than itself, salty sand would be able to be obtained if a player breaks it with any tool enchanted with Silk Touch.
Actual Behaviour
Salty sand still drops salt rocks and regular sand when broken by any tool enchanted with Silk Touch. This was tested with a Silk Touch pickaxe, which would be able to obtain the likes of grass blocks, podzol and mycelium.

I'm closing any issues labeled Fixed in Development so I can work on fixing open issues.

Thanks for the issue, this will be fixed.

I also noticed that fortune doesn't work on salty sand, this will also be changed.