Common ore grade

January 08, 2025

ore								Industrial grade		Boundary grade
Non-ferrous metal
copper	Cu							0.4%-0.5%		0.20%
Lead Zinc	Pb						Sulfide ore	0.7%-1.0%		0.3%-0.5%
							Mixed mine	1.0%-1.5%		0.5-0.7%
							Oxidized ore	1.5%-2.0%		0.5-1.0%
	Zn						Sulfide ore	1.0%-2.0%		0.5%-1.0%
							Mixed mine	2.0%-3.0%		0.8%-1.5%
							Oxidized ore	3.0%-6.0%		1.5%-2.0%
Bauxite (Al ₂ O ₃₎	Lucai							≥55%		≥40%
	Pit mining							≥55%		≥40%
Tungsten	Black tungsten							0.12%-0.18%		0.08%-0.1%
	White tungsten							0.15%-0.2%		0.1%-0.12%
	Sand tungsten							0.04%		0.02%
molybdenum								0.06%-0.08%		0.03%-0.05%
nickel								0.3%-0.5%		0.2%-0.3%
tin								0.2%-0.4%		0.1%-0.2%
magnesium	Dolomite mine							≥19%
	Magnesite							≥42%~46%
antimony								1.50%		0.70%
HG								0.08%-0.10%		0.04%
cobalt	Sulfide, cobalt (cobalt and arsenic)							0.03%-0.06%		0.02%
	Cobalt ore							0.50%		0.30%
bismuth								0.50%		0.20%
black metal
iron	Open hearth Rich mine		Magnetic, red, imaginary hematite					55		50
			Brown, goethite					50		45
	blast furnace Rich mine		magnetite					50		45
			Red, imaginary hematite					45~50		40～45
			Brown, goethite					40～45		35～40
			Siderite					35～40		30~35
			Self-fluxing ore					35~38		28~32
	magnetite							25%		20%
	Hematite							28%-30%		20%
	Siderite							25%		20%
	Limonite							30%		20%
titanium	Primary mine						Rutile	≥3~4%		≥2%
							Titanite	≥8~10%		≥5~6%
	placer						Rutile	≥2kg/m ³		≥1kg/m ³
							Titanite	≥15kg/m ³		≥10kg/m ³
vanadium	Separate deposit						V ₂ O ₅	0.5 to 0.70%
	Vanadium is an associated component deposit							≥0.1%-0.5%
manganese	Manganese oxide					Rich mine		≥30		≥20～25
						Lean mine		≥20		≥10～15
	Manganese carbonate			Rich mine				≥25		≥15～20
				Lean mine				≥10～15		≥8
	Iron manganese ore							≥10～15
chromium	Primary mine			Rich mine				≥32%		≥25%
				Lean mine				≥8%-10%		≥5-8%
	placer							≥3%		≥1.5%
Precious metal
gold	Rock gold							3-5g/t		1-2g/t
silver								100-120g/t		40-50g/t
Rare earth
Light rare earth ( 铈族)	镧 , 铈, 镨 , 钕 , 钜, 钐 , 铕				Fluorine-bearing carbon ore, monazite primary ore				1%		0.5%
					Monazite sand mine and weathering crust				300～500g/m ³		100～200g/m ³
Heavy rare earth ( 钇族)	钇, 钆 , 铽 , 镝 , 钬 , 铒 , 铥 , 镱 , 镥				Containing yttrium (xenotime, gadolinite) pegmatite carbonate rock				0.05 to 0.1%
					Phosphonium ore deposit and weathering crust deposit				50～70g/m ³		30g/m ³
strontium	Sr (lapisin mineral)							60%		40%
Rare metal
钽	Ta	open air						20～30g/ ^m3		10 g/m ³
		underground						50～60 g/ ^m3		20 to 25 g/m ³