Thanks Anders for this very interesting theme.
I have Chosen Australian Opals for This Theme
According to the legends of the Australian Aborigines, the creator came down to Earth on a rainbow, in order to bring the message of peace to all the humans. And at the very spot, where his foot touched the ground, the stones became alive and started sparkling in all the colors of the rainbow. That was the birth of the opals.
"There are worlds in an opal. ~Terri Guillemets"