The Zinc Ore is normally found in association with other base metals such as copper and lead in ores. Zinc is a chalcophile, meaning the element has a low affinity for oxides and prefers to bond with sulfides. Chalcophiles formed as the crust solidified under the reducing conditions of the early Earth's atmosphere. Sphalerite, which is a form of zinc sulfide, is the most heavily mined zinc-containing ore because its concentrate contains 60–62% zinc.
Other minerals from which zinc is extracted include smithsonite (zinc carbonate), hemimorphite (zinc silicate), wurtzite (another zinc sulfide), and sometimes hydrozincite (basic zinc carbonate). With the exception of wurtzite, all these other minerals were formed as a result of weathering processes on the primordial zinc sulfides.
Identified world zinc resources total about 1.9 billion tonnes. Large deposits are in Australia, Canada and the United States with the largest reserves in Iran. At the current rate of consumption, these reserves are estimated to be depleted sometime between 2027 and 2055. About 346 million tonnes have been extracted throughout history to 2002, and one estimate found that about 109 million tonnes of that remains in use
Now we are sourcing for the Zinc ore for the production of the copper alloys here in China.
Our purchase quantity for the Zinc ore can be 5000MT per month and the commonly specification is as follows:
Zinc Ore Specification:

Zinc Ore
Zn                                     : 48.00% min.
As                                      : 0.02% Max.;
Moisture                           : 1.00% Max.;
Sizes                                  : 5-60mm
Packing                            : in PP bags of 50kgs or Jumbo bags of 1000kgs of each.

Welcome the SERIOUS supplier to contact with us and give us the completely Quotation to CIF Xiamen port, China by ocean sea transportation.