Treasure Trove

The Treasure Trove (ロックスプレンダー) is a Keyblade that can be wielded by Terra, Ventus, and Aqua in Kingdom Hearts Birth by Sleep.

Design
The shaft of this Keyblade appears to represent mining cart tracks. The teeth are in the form of a pickax, a mining cart filled with crystals near the hilt. The hilt itself is also made of these crystals, colored blue, silver, and gold, and the Keychain is a red crystal.

A "treasure trove" is a phrase that refers to finding a hidden treasure, which reflects the gems the Seven Dwarfs mine. The Keyblade's Japanese name holds a similar meaning, with "splendor" meaning "great luster or brilliance". The full name, "Rock Splendor", references the luster of gemstones.