- MOQ10 Meter
- Supply TypeExporter, Supplier
- Preferred Buyer Location All Countries Except India
We are offering tantalite ore. Coltan designations chemical formula: fe++ta2o6 coltan nominal chemical properties: a) tantalum: 70.44 % ta 86.01 % ta2o5 b) iron: 10.87 % fe 13.98 % feo c) oxygen: 18.69 % o coltan typical physical constants: atomic number: 73 system: orthorhombic molecular weight: 513.74 gm strunz id: 4d.18-50 mohs hardness: 6 to 6.5 color: variations of black specific gravity: ~
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