I finally got to try using slide film and have it cross-processed.
Slide film, as its name implies, is used for slides and transparencies. It is also known as reversal film and positive film. The E-6 process is used for developing slide film (while the C-41 process is used for negative film). The C-41 process, however, can also be used to develop slides (in like manner, E-6 can be used for negatives). This is called cross-processing.
C-41 cross-processing results in a wild color shift and strong saturation. The general hue would depend on the type of film used.
The pictures below are shot using Fuji Provia. Fuji Provia when cross-processed provides a green-blue color shift. It seems that if a picture is shot directly under the sun, it would have a purplish hue. If shot at an angle from the sun, it would have a bluer hue. However, if the angle of the sun becomes narrower (as in the case of late afternoon to sunset), the picture would have an aqua hue.



More pictures can be found here.