Seashell Chest貝がらの宝箱

Is it a chest or is it a clam?
In-game description

What you get from salvaging Seashell Chest (Salvage and Repair Station)

Seashell Chest can be salvaged. Salvaging it gives the following items.

For each material, the amount is "amount used to craft × 0.49 (lower when durability is down, 0.3 at 0 durability) × the item's multiplier", and a fraction is the chance of one more (2.4 means 2, with a 40% chance of 3). The range is from 0 durability to full durability (items without durability always count as full). Scrap parts are a fixed number set by the item level. All items that can be salvaged are listed in salvaging.

How to get Seashell Chest

Placed inside dungeons or scenes (buildings, ruins and so on); break it or pick it up to get itPlaced in: Coral Island [The Sunken Sea], Fishing Islets [The Sunken Sea], Skeleton Island [The Sunken Sea], Sea Melody Room, Small Pier [The Sunken Sea], Sea Harbor Town [The Sunken Sea], Sea Islands [The Sunken Sea], Sea Walls with Chest [The Sunken Sea] and 7 more

Scene containers, dungeon placements, guaranteed drops and natural spawns are based on the Obtaining data of the Core Keeper Wiki (Fandom) (CC BY-SA 3.0), because these are not in the game files this site reads. Scene names are the wiki's English names.