As we neared Coober Pedy from the North the landscape changed from flat to strange as the desert erupted in white cones of discarded subterranean earth.
This evening the opals of Coober Pedy did not come from the toil of miners below but from sun and the clouds and the sky above.
Photo: Robert Rath, 'Opals In The Sky', 1/3s f/11 ISO250 15mm