Hi Joe,

From my limited experience, the organza I've seen at the fabric stores appears to have the same fiber thickness. Now I think the fibers going in one direction are somewhat different then those going in the other but it's been awhile since I played with the material and I'd have to recheck that. Anyway, as I said, the pieces of fabric I've seen have the same thickness of the sparkly fibers regardless of the color. Also, I am pretty sure that the size of the material is on the attached label at the end of the cardboard. Not sure if this helps.

Allan