Tin Extraction
Zinc Oxide/Sulfide Ore Tin Ore/ Cassiterite About 50 kinds of tin minerals are known by human. Tin ore mainly exists as cassiterite, other commonlyseen tin minerals includes stannite, franckeite, herzenbergite, incaite, cylindrite, nordenskildine and thoreaulite, etc. The average tin ore grade is less than 1%, alluvial tin grading %%.
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