Octahedron Crystal

A double terminated crystal of unknown origins, with endcaps plated with a white metal. Touching the crystal itself shifts the holder into Shadowfell, leaving the crystal suspended in the air in the material plane. Releasing the crystal causes the user to shift back into the material plane. The endcaps slide over the crystal in a physically impossible manner, sealing the reactive crystal sides and rendering it safe to handle.

Octahedron Crystal

Khorvaire wormxwood