Talk:Fumarole mineral

The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.

The result was: promoted by Cwmhiraeth (talk) 06:20, 21 December 2020 (UTC)

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Scanning electron microscope image of fumarole minerals at Tolbachik volcano

• ... that volcanic fumaroles deposit over 240 individual fumarole minerals (pictured)? Among all known volcanoes, Tolbachik is the world-record holder in both diversity of fumarolic minerals andthe number of new mineral species discovered at onevolcano. Summarizing the available literature and ourdata, we evaluate the number of valid mineral speciesreliably determined to date in Tolbachik fumaroles asabout 240
• ALT1: ... that volcanic fumaroles deposit over 240 distinct, rare fumarole minerals (pictured)? Among all known volcanoes, Tolbachik is the world-record holder in both diversity of fumarolic minerals andthe number of new mineral species discovered at onevolcano. Summarizing the available literature and ourdata, we evaluate the number of valid mineral speciesreliably determined to date in Tolbachik fumaroles asabout 240

• Comment: "At least" since the number 240 only refers to Tolbachik's minerals but other volcanoes have 'em as well. Also, a lot of this DYK is predicated on the spectacular images, so I'd like to see the image (or another of the article) used on the main page if at all possible. QPQ will be provided ASAP.

Moved to mainspace by Jo-Jo Eumerus (talk). Self-nominated at 14:23, 6 December 2020 (UTC).

General: Article is new enough and long enough
New enough: Long enough:

Policy: Article is sourced, neutral, and free of copyright problems
Adequate sourcing: Neutral: Free of copyright violations, plagiarism, and close paraphrasing:

Hook: Hook has been verified by provided inline citation
Cited: Interesting:

Image: Image is freely licensed, used in the article, and clear at 100px.
Freely licensed: Used in article: Clear at 100px:

QPQ: Done.

Overall:

The article looks good. Its content meets DYK requirements and there are no copyright or other policy issues. All the images are free and appropriately licensed, and I agree that one of these images would look very cool on the main page. I have a few comments about the hook itself, though:

• The hook says "over 240 individual fumarole minerals", but the number given in the article and cited there is "at least 210". Though it's clear in the nomination and the article that the number is a lower bound (other volcanoes would have them), this number should be consistent. If different numbers are given in different sources, choose the one that is most recent or most reflective (of all sources) and stick to it.
• I think the hook would sound slightly more interesting if the wording could be changed to emphasize the quantity ("over 240" sets the stage for this). I'd suggest changing "individual" to "distinct" (over 240 distinct minerals), "different" (over 240 different minerals), or something similar.
• Additionally, perhaps you could mention in the hook that these are rare minerals. (I'm not sure about the exact wording for this, though; it would be in addition to or instead of one of the adjectives above.) This could also provide emphasis.

ComplexRational (talk) 03:34, 12 December 2020 (UTC)

@ComplexRational: QPQ is here. Do note that I have expanded the article a bit since you made your review as I didn't have time for all the edits last week. The 210/240 thing will have to wait until I get another copy of the source, but penned up an ALT1. Jo-Jo Eumerus (talk) 15:14, 13 December 2020 (UTC)

Now the article features the number 240. Jo-Jo Eumerus (talk) 16:27, 13 December 2020 (UTC)

@Jo-Jo Eumerus: Thank you for providing the QPQ and making sure the numbers are consistent. I'm striking ALT0 per this thread, and barring any minor refinements to the wording, ALT1 with the image looks good to go. ComplexRational (talk) 02:14, 15 December 2020 (UTC)

Name

@Jo-Jo Eumerus: I just wanted to enquire about the naming of this article. As far as I can tell, it covers a broader range of concepts than the title suggests, including:

• Minerals formed by desublimation in fumaroles (as per the title)
• Minerals formed by desublimation in volcanic eruptions or from vents
• Minerals formed in non-volcanic settings, such as burning coal deposits.

This being the case, should we consider broadening the title, say to Desublimation minerals or some other title to be agreed, or is the current title actually the accepted WP:COMMONNAME in reliable sources for all the usages above, and hence it's correct to stay as it is? Cheers  — Amakuru (talk) 09:50, 5 July 2023 (UTC)

The article primarily covers the first point. Some sources also use "fumarole minerals" to describe #2 and #3 because of the similar mechanisms and chemistry. I think it's the common name, while desublimation minerals isn't used at all. Jo-Jo Eumerus (talk) 10:47, 5 July 2023 (UTC)

Featured picture scheduled for POTD

Hello! This is to let editors know that File:Tazieffite -_Mutnovsky_volcano,_Kamchatka,_Russia_(Color_SEM).jpg, a featured picture used in this article, has been selected as the English Wikipedia's picture of the day (POTD) for October 30, 2023. A preview of the POTD is displayed below and can be edited at Template:POTD/2023-10-30. For the greater benefit of readers, any potential improvements or maintenance that could benefit the quality of this article should be done before its scheduled appearance on the Main Page. If you have any concerns, please place a message at Wikipedia talk:Picture of the day. Thank you!  — Amakuru (talk) 09:56, 24 October 2023 (UTC)

Fumarole minerals are minerals that are deposited by fumarole exhalations. They form when gases and compounds desublimate or precipitate out of condensates, forming mineral deposits. They are mostly associated with volcanoes (as volcanic sublimate or fumarolic sublimate), following deposition from volcanic gas during an eruption or discharge from a volcanic vent or fumarole, but have been encountered on burning coal deposits as well. They can be black or multicoloured and are often unstable upon exposure to the atmosphere. This fumarole formation, formed of acicular crystals of tazieffite (black), was photographed at Mutnovsky, a volcano on the Kamchatka Peninsula in Russia.

Photograph credit: Ppm61

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Featured picture scheduled for POTD

Hello! This is to let editors know that File:Color SEM 4.jpg, a featured picture used in this article, has been selected as the English Wikipedia's picture of the day (POTD) for June 28, 2024. A preview of the POTD is displayed below and can be edited at Template:POTD/2024-06-28. For the greater benefit of readers, any potential improvements or maintenance that could benefit the quality of this article should be done before its scheduled appearance on the Main Page. If you have any concerns, please place a message at Wikipedia talk:Picture of the day. Thank you!  — Amakuru (talk) 20:56, 21 June 2024 (UTC)

Fumarole minerals are minerals that are deposited by fumarole exhalations. They form when gases and compounds desublimate or precipitate out of condensates, forming mineral deposits. They are mostly associated with volcanoes (as volcanic sublimate or fumarolic sublimate), following deposition from volcanic gas during an eruption or discharge from a volcanic vent or fumarole, but have been encountered on burning coal deposits as well. They can be black or multicoloured and are often unstable upon exposure to the atmosphere. This natural-color photomicrograph of fumarole minerals from Mutnovsky, a volcano on the Kamchatka Peninsula in Russia, was taken using a scanning electron microscope. Yellow and red crystals of thallium(I) iodide are visible, with a gradual transition between the two polymorphs. The crystals are located on a substrate of altered rock. This image is 700 micrometres (0.028 in) across on the long side.

Photograph credit: Mikhail Zelensky

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