Sandy Pile

Sandy Piles can often be found on Beach biomes in the Shipwrecked expansion, Dig them up and you'll get Sand!

According to the game files, Some other rare drops can be obtained from Sandy Piles. Those items and their drop rates are listed here:

Seashell 1%

Rock 1%

Jet/Crimson/Azure Feathers 1%

Gears 0.2%

Red Gem 0.2%

Dubloon 0.2%

Venom Gland 0.1%

Coconut 0.1%

Purple Gem 0.1%

Crab 0.1%

Snake 0.1%