Desert Glass

The Desert Glass is a magical item that first appeared in "Steven's Lion."

Description
The Desert Glass is a green gem embedded in a red pillow. For an unknown reason, it became aimless and now creates pillars and walls sporadically (occurring at irregular times). Placing it on sand causes it to create a sandstorm and a fortress to protect it. The Crystal Gems retrieved it from a desert, not knowing that the Glass had a Lion guardian. Amethyst decided to keep it because she's the one who stopped it, so she decides to hold onto it. Because Amethyst failed to contain it immediately, Steven accidentally set it off near the Crystal Temple. After Lion and Steven recovered it, the Desert Glass was finally contained.

Trivia

 * As Lapis Lazuli was trapped within the mirror it is possible and most likely the gem on the the glass represents a trapped gem.

Desert Glass