Ilmenit: Perbedaan antara revisi
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{{Infobox mineral
| name = Ilmenite
| category = [[Oxide mineral]]
| boxwidth =
| boxbgcolor =
| image = Ilmenite-155036.jpg
| imagesize =
| caption = Ilmenit dari Wilayah Ural, 4.5 x 4.3 x 1.5 cm
| formula = Oksida besi titanium {{Chem|Fe||Ti||O|3}}
| strunz = 4.CB.05
| dana = 04.03.05.01
| symmetry = Trigonal <br/>[[H-M symbol]]: {{overline|3}} <br/>[[Space group]]: R{{overline|3}}
| unit cell = a = 5.08854(7) Å, c = 14.0924(3) Å: Z=6
| color = Iron-black; gray with a brownish tint in reflected light
| habit = Granular hingga masif dan berwuhud eksolusi lameral pada hematit atau magnetit
| system = [[Trigonal]] - rhombohedral
| twinning = {0001} sederhana, {10{{overline|1}}1} lamellar
| cleavage = Tidak ada; parting pada {0001} dan {10{{overline|1}}1}
| fracture = Konkoidal hingga subkonkoidal
| tenacity = Brittle
| mohs = 5–6
| luster = metalik hingga submetalik
| refractive =
| opticalprop = Uniaxial (–)
| birefringence = Kuat; O = coklat kemerah-mudaan, E = coklat gelap (bireflectance)
| pleochroism =
| streak = Hitam
| gravity = 4.70–4.79
| density =
| melt =
| fusibility =
| diagnostic =
| solubility =
| diaphaneity = Opak
| other = Magnetisme lemah
| references = <ref>[http://webmineral.com/data/Ilmenite.shtml Webmineral data]</ref><ref>[http://rruff.geo.arizona.edu/doclib/hom/ilmenite.pdf Mineral Handbook]</ref><ref name=Mindat>[http://www.mindat.org/min-2013.html Ilmenite on Mindat.org]</ref>
}}
[[Image:Ilmenite.GIF|thumb|Crystal structure of ilmenite]]
'''Ilmenit ''' adalah [[oksida mineral]] titanium-besi dengan formula ideal FeTiO<sub>3.</sub> Ilmenit memiliki magnetisme lemah dengan kenampakan hitam atau abu-abu-baja yang solid. Dari perspektif komersial, Ilmenit adalah [[bijih]] paling penting untuk mencari titanium.<ref>Heinz Sibum, Volker Günther, Oskar Roidl, Fathi Habashi, Hans Uwe Wolf, "Titanium, Titanium Alloys, and Titanium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry 2005, Wiley-VCH, Weinheim. {{Templat:DOI|10.1002/14356007.a27 095}}</ref>
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