they make about US$5 to $3,000 per carat, depending on quality but for a group of opals it may cost around 100 million to 200 million Australian dollars.
india
The U.S. Largest exporter, too.
The types of Opal that i am familiar with are White Opal, Fire Opal, Boulder Opal, Black Opal, Crystal Opal, Light Opal, Doublet Opal, Triplet Opal, Common Opal, Synthetic Opal, and Immitation Opal.
France is not a planet, it's a country, and it's also not the biggest country.
An Ethiopian opal is an opal-CT, whereas an Australian opal is an opal-A. The Ethiopian opal is made up of leptospheres, instead of small amorphous silica spheres like the Australian opal.
Afghanistan is the biggest opium exporter
Chile
Germany
china
Saudi Arabia is the top oil exporter in the world
india
Colombia
Ivory coast or in french Cote d'lvoire
Canada is the biggest single exporter.
no, it is not the middle east is the biggest oil exporter
They are the world's biggest exporter of bananas.Our exporter has not renewed our contract.
sth Africa