Australia produces around 95% of the world's opal for
use in the jewellery industry. There are lots of opal mining towns in Australia
but only one is well known throughout the world: Coober Pedy.
The opal mining fields of Coober Pedy lie in the
outback of South Australia, 750 km north of Adelaide. Many of the locals in
Coober Pedy prefer to live underground in dugouts where it is cool in summer
and warm in winter.
Stamp
In 1995 Australia issued two stamps with opal holograms.
When the stamp is held up to the light the hologram comes to life just like an
opal and the color rolls and changes when you move the stamp.
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1 comments:
Great postcards (this one and the other opal mine one), and amazing stamps! Lucky you! :D
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