This is a portion of some kind of stone slab (I think it's marble - probably should have taken better notes - will edit this when I know for sure). What's neat about this piece is how the calligraphy is woven into the rest of the styling.
This last piece is an iron jar. Notice the detail of not only design, but color as well. One thing I have found in my studies is that Islamic artwork is not just ornate, but colorful as well. Artists are/were especially fond of cobalt blue for reasons I have yet to figure out.
This last picture shows an illuminated manuscript. One of the most valued pieces of artwork Medieval Middle Easterners could have in their possession was an illuminated book. These were found mainly among the learned or higher class persons.
This particular folio is from the Haft manzar (Seven visages) by Hatifi (d. 1521) and is opened to the following poem:
In the abode of grief that is this world, there is no
consoler [better than the book].
In a corner of loneliness, every moment,
it provides a hundred comforts, and there is never any vexation."*