Bim's Magnificent Teleport Circle

As you cast the spell you draw a circle 10ft in diameter of sigils in a specific sequence. Then using the dreamdust create 7 mineral or nonliving objects with the sigil sequence, no larger than a 2 foot cube and must be in the form of something you've seen. The duration to create the object depends on the objects material.
Veggie - 12 hrs
Stone or Crystal - 8 hrs
Precious metal - 30 min
Gem - 5 min
Mitral - 1 min
These items cannot be used as components in another spell, but they will be in reality until used or until the Teleportation circle is closed.
A swirling purple portal appears above the circle. Another portal appears in front of up to 5 willing creatures who touch one of the objects. The portal lasts one hour or until the creatures walk through. The portal leads to the teleportation circle and the objects are consumed.
This teleportation circle can be made permanent if cast in the same location everyday for 1 year.

When you cast this spell in a slot of 7th lvl or higher you make one additional object for each spell level. When cast at 9th lvl the objects will teleport the creatures to a different plane than the one they are on.