Talk:Pyrrhotite

A fact from Pyrrhotite appeared on Wikipedia's Main Page in the Did you know column on 24 July 2009 (check views). The text of the entry was as follows:

Did you know... that troilite, a form of pyrrhotite, is extremely rare on Earth but is abundant on Mars (pictured)?

A record of the entry may be seen at Wikipedia:Recent additions/2009/July.

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Rocks and minerals High‑importance

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Relative intensity?

The sentence "The relative intensities of isotopes of sulfur are relatively constant in meteorites" needs to be cleaned up. Can someone remove one of the relatives to clarify its meaning? Thanks. Delmlsfan (talk) 16:36, 25 July 2009 (UTC)[reply]

Tried. Materialscientist (talk) 00:30, 26 July 2009 (UTC)[reply]

Troilite

Moving troilite info to its own article. Vsmith (talk) 19:43, 26 November 2011 (UTC)[reply]

OK, moved all that sexy space stuff to troilite - now need to concentrate on improving this "hum-drum" earthly mineral :) It is an important mineral ... Vsmith (talk) 20:26, 26 November 2011 (UTC)[reply]

Magnetic Pyrite for Dummies?

I worked up the following as part of a draft for Pyrite group, then realized that it was more pertinent to Magnetic pyrite (duh):

Magnetic pyrite embraces some of the compounds intermediate between iron pyrite (FeS₂) and troilite (FeS), along with ores and other mixtures prominently including these compounds. Troilite is non-magnetic, but, as examples, Fe₇S₈, Fe₁₁S₁₂, and mixtures of them, are magnetic in varying degrees.

IMO it is less useful for chemists and allied professionals than what is already there, but more accessible to non-experts, and may be a simple preview that could bridge the way to tackling the existing material for some well-motivated non-experts. (For instance, i don't think i was ever taught about the

Fe_(1-x)S (x = 0 to 0.2)

notation, but i've gotten to the point where i don't always get the ratios backwards, and i think many even more poorly prepared than i are likelier to profit from having just seen examples that invite a correct conjecture about the relation between that notation and the individual-species formulas.)
I leave it to you who are better qualified to weigh that possibility.
--Jerzy•t 06:03, 6 August 2013 (UTC)[reply]

Lacks clarity with regard to non-stoichiometric compound aspect

The article on non-stoichiometric compounds references this article, but there is no specific mention in the article that it can be considered a non-stoichiometric compound. Add this talk section, and tags to each article, until the messages in the articles are consistent. Le Prof 71.201.62.200 (talk) 18:52, 8 July 2015 (UTC)[reply]

Yes, more can be added - but the lack of that information is not contradictory. If it bothers you, simply fix it. Vsmith (talk) 22:32, 8 July 2015 (UTC)[reply]

Wiki Education assignment: ERTH 4303 Resources of the Earth

This article was the subject of a Wiki Education Foundation-supported course assignment, between 13 January 2023 and 15 April 2023. Further details are available on the course page. Student editor(s): Ol Evene (article contribs). Peer reviewers: Vansam823, Jushe1234.

— Assignment last updated by ChloejWard (talk) 03:40, 15 April 2023 (UTC)[reply]

thanks for the peer review. Did my best to incorporate your suggestions. Ol Evene (talk) 00:03, 12 April 2023 (UTC)[reply]

pyrite to pyrrhotite reaction?

Wondering if anyone has a good source for pyrite to pyrrhotite transition reaction. Ol Evene (talk) 00:00, 12 April 2023 (UTC)[reply]

Becker Quarry etc

The section on occurrence in mines lists Becker Quarry, Connecticut, which clearly is not a mine but was a quarry producing crushed rock aggregate for use in concrete (and possibly hardcore). It is of course significant in that it is the aggregate source for the deteriorating concrete in Connecticut and surrounding areas.

If this is included, then the same section should also make reference to B&B Quarry and Maskimo Quarry in Shawinigan, Quebec, which were the sources of concrete aggregate in the defective concrete in the Trois Rivieres region of Quebec. I'm not familiar with editing Wikipedia, particularly with regards to referencing, but there are multiple references to the Connecticut case but none for Quebec (Rodrigues et al 2012, Cement and Concrete Research would be a useful addition)

I will refrain from comments regarding the Irish instances, as these are still subject to active research. Dummy half (talk) 10:57, 15 November 2023 (UTC)[reply]