| 41. | It is associated with derbylite, hematite, rutile, karelianite, siderite, and calcite.
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| 42. | Minerals produced by alteration include calcite, chlorite, epidote, kaolinite, rutile and sericite.
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| 43. | It has a rutile-type crystal structure similar to other fluorides of chemical formulae MF 2.
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| 44. | :You'd have to know which form the powder is in, rutile or anatase.
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| 45. | He was one of the first collectors of lazulite, rutile, pyrophyllite, and other minerals.
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| 46. | The company purchased a major rutile lode in southern Mexico, and began mining and refining titanium.
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| 47. | The preferred raw material for the chloride process is natural rutile because of its high titanium dioxide content.
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| 48. | Synthetic rutile is also fairly soft ( hardness ~ 6 ) and brittle, and therefore wears poorly.
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| 49. | Unlike other silica polymorphs, the crystal structure of stishovite resembles that of rutile ( TiO 2 ).
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| 50. | The company owns the " Sierra Rutile Mine " ( controlled through Sierra Rutile Limited ).
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