Widogast's Vault of Amber

Widogast's Vault of Amber is a 4th-level transmutation spell created by Caleb Widogast.

Description
Widogast's Vault of Amber requires one minute to cast, but can also be cast as a ritual, allowing it to be cast without expending a spell slot in exchange for increasing the casting time to eleven minutes. The spell has verbal, somatic, and material components of five amber gems worth at least 200 gold pieces.

The caster arranges the gems in a circle around up to five hundred pounds of non-living material, tracing transmutative sigils above each of them. The objects are then pulled into the largest gem, becoming stored in stasis. While stored, the material doesn't weather, age, or rot.

The caster can use an action to speak a command word, chosen while casting the spell, to release the stored contents of the gem onto the ground. The contents are also released if the spell was dispelled.

Trivia

 * The command word that Caleb uses to retrieve an item from the gem is his mother's name, Una.