| 31. | It was the world's second largest producer of rutile, used for paint pigments.
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| 32. | In nature, this compound is found in the minerals anatase, brookite, and rutile.
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| 33. | Natural rutile may contain up to 10 % iron and significant amounts of niobium and tantalum.
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| 34. | This product is called synthetic rutile.
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| 35. | This is further processed in a similar way to rutile to give the titanium dioxide product.
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| 36. | The titanium minerals are mostly anatase and rutile, and zirconium occurs in the mineral zircon.
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| 37. | Titanium ( ilmenite ) extraction was significant, as well as that of zircon and rutile.
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| 38. | Thereafter, rutile, leucoxene and then ilmenite in terms of value given to the ore.
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| 39. | Rutile has a higher refractive index and specific gravity, which affects transparency and particle size.
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| 40. | Calculations give ??gr C " 7?for Rutile, and ??gr C " 20?for Calomel.
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