Talk:Ilmenite

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Images

Please can someone give an idea of size, such as a scale bar. This is very basic stuff. Not including these is bad practice and makes the images of very little value. —Preceding unsigned comment added by 81.153.64.39 (talk • contribs)

I have answered here. Best regards Rhanyeia 12:36, 16 August 2007 (UTC)[reply]

Indeed, it is good practise to include a scale bar or object for which the size is relatively well known. But you have to work with what you get on wikipedia. This is also not the only image without, not by a long shot.Rolinator 02:40, 18 August 2007 (UTC)[reply]

Images and description of thin section of illmenite AND hematite (hematite article should also be change if I'm right) in conflict with reference.

I had always regarded from memory illmenite and hematite as opaque minerals, as such color in thin section microscopy would not be an adequate description (being opaque means it would appear black in transmission microscopy). So I went to the reference cited by the author of the edit, the last lines of structure and properties, page 366 and 367 of Introduction to Mineralogy by William Nesse (I have the 2016 edition). That pages describe Titanite, which is a titaniferous mineral that is not opaque and has the colors described in this article. The pages 411 and 413 on the other hand do describe illmenite and hematite and cite the mineral as an opaque and give no description of its color. The images in both this articles (illmenite and hematite) are at least confusing as, as explained above, they are both opaque minerals and would look like black, blobs more commonly, grains in both planar and crossed polarized light used in transmission microscopy. 2800:A4:1767:1900:6C2F:B9E8:FA0A:ADFF (talk) 16:32, 14 December 2022 (UTC)[reply]

As none has replied to this comment I have deleted the line "In thin sections, ilmenite appears brownish, slightly pink, or purple. The mineral has distinct bireflectance and is pleochroic. In crossed polarizers, ilmenite is highly anisotropic and its interference colors range from gray to brownish gray." at the end of the "Structure and properties" section for the reasons explained above. 2800:A4:1600:7100:992F:DC7D:8B2C:259F (talk) 01:00, 16 December 2022 (UTC)[reply]

Clay mineral

Is Ilmenite really a clay mineral? I found some refs claiming that it is found in clays, but as clay mineral should it be a layered silicate? --

Stone (talk) 13:09, 20 April 2011 (UTC)[reply]

No. What refs? Perhaps it occurs as residual grains in clays formed by weathering or alteration of primary ilmenite bearing rock. Vsmith (talk) 14:45, 20 April 2011 (UTC)[reply]

Right. The ref says residual grains. Should we remove the clay mineral box at the end of the article ? --Stone (talk) 06:06, 21 April 2011 (UTC)[reply]

Chemical name

Isn't this Iron (II) Titanate? 76.124.224.179 (talk) 00:05, 26 January 2013 (UTC)[reply]

Redirect from Ferrocarbon

I ended up on this page by looking for "ferrocarbon". As that is a redirect to Ilmenite, the term "ferrocarbon" should be explained/mentioned in the text, shouldn't it? 130.180.55.242 (talk) 12:00, 16 August 2016 (UTC)[reply]

Thanks for raising this point. I have changed the Ferrocarbon article's redirect from Ilmenite to Steel, because I think ferrocarbon is steel with at least 10% carbon, so it seems more sensible to me. I've also added a sentence to the ilmenite article in a new section named "Alloys". GeoWriter (talk) 14:27, 16 August 2016 (UTC)[reply]

Wangdaodeite

Wangdaodeite is another natural polymorph of FeTiO3. Eudialytos (talk) 12:36, 18 June 2017 (UTC)[reply]

External links modified (January 2018)

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Titanium production

Sorry, you have on the page: "Titanium dioxide is a very good white pigment and is also used in the production of Titanium metal." I have never heard and there is no sense to produce titanium metal from titanium dioxide pigment. Titanium metal could be produced from ilmenite.2 FeTiO3 + 7 Cl2 + 6 C → 2 TiCl4 + 2 FeCl3 + 6 CO and TiCl4 + 2 Mg → Ti + 2 MgCl2

Titanium is made from the oxide directly according to our article on the metal. Mikenorton (talk) 21:53, 28 December 2018 (UTC)[reply]

I read the articles, which you refer. Still, I find the sentence nonsense. I admit titanium could be made from TiO2 (at least in laboratorium). In real life you have to use as TiO2 either rutile mineral, calciner discharge of the sulfate process or titanium dioxide films made by ALD from TiCl4. Not titanium dioxide pigment. TiO2 and titanium dioxide pigment is not the same issue. Titanium dioxide pigment should have crystal size 220 nm and is aftertreated with aluminium and silicon compounds to deminish the photoactivity of TiO2. --Sailamarja (talk) 13:46, 29 December 2018 (UTC)[reply]

Sulfate process plants must utilise low-vanadium ilmenite, as vanadium is a penalty element.

This sentence cannot be true. There is more sense, if there is chloride process instead of sulfate process. Sailamarja (talk) 17:32, 29 December 2018 (UTC)[reply]

Expanding with material from Finnish Wiki article

I've brought in some material from the Finnish article, but much of the article wandered off-scope and there was an extensive section specific to ilmenite in Finland. I did not try to bring this material in. --Kent G. Budge (talk) 00:41, 25 February 2022 (UTC)[reply]