Talk:Malachite

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This article was the subject of a Wiki Education Foundation-supported course assignment, between 14 January 2021 and 11 April 2021. Further details are available on the course page. Student editor(s): JazChapman. Peer reviewers: Tamara Omar, JacquelineB3.

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Article suggestion

This article seems too technical, explanation of terms within text maybe helpful. Mention of the uses of the rock would be helpful. Mention of the price of the rock, in terms of semi precious or what ever it happens to be would be helpful.

I have changed Irridescent to vibrant, as (and the Irridescence page qualifies) MALACHITE IS NOT IRRIDESCANT.

POV

The introductory sentence of this article is obvious POV. It states that malachite is beautiful, but this is obviously a matter of opinion rather than fact, and there is no source cited to even back up the claim. A person who does not like green would probably not consider this stone to be beautiful at all. Clearly, whoever wrote this article has a pro-green bias. – 24.40.172.245 05:32, 24 September 2006 (UTC)[reply]

I'm not anti-green, but removed the 1st paragraph as unsourced. Vsmith 16:56, 24 September 2006 (UTC)[reply]

Yes, we must not offend anyone's favorite color.

WriterHound (talk) 19:50, 8 January 2008 (UTC)[reply]

Blue. No, yellow ... --Kent G. Budge (talk) 16:38, 22 November 2020 (UTC)[reply]

Offence is taken not given!! 2604:3D08:B581:C300:D57:4C81:293D:523A (talk) 18:36, 8 December 2024 (UTC)[reply]

"Mined in England"

where? —Preceding unsigned comment added by 86.176.57.77 (talk) 15:20, 6 December 2009 (UTC)[reply]

It's been mined in at least Alderly Edge, as I've been down the copper mines there 51.7.72.212 (talk) 07:32, 20 August 2024 (UTC)[reply]

Hebrew definition

I have changed the meaning of the Hebrew word "מַלְאָךְ" to 'angel' rather than 'messenger'. It technically means 'angelic messenger' but 'angel' would be an overall more accurate translation. By the way I can't find any reference to the name having any Hebrew origin, so not sure where this fact has been picked out from. —Preceding unsigned comment added by Firefly 10 (talk • contribs) 09:35, 27 April 2010

Removed as it was sourced to the wictionary enty which is unsourced. Vsmith (talk) 11:54, 27 April 2010 (UTC)[reply]

What is all about with this "malachi" meaning king in hebrew and "molochitis lapis" in greek meaning stone of (the colour of) mallow? The mallow plant has nothing to do with the semitic root cited in the wikipedia article and it's supposed royal use is undocumented . The whole hebrew & arabic supposed etymology should be removed unless a -valid- source is shown. All etymology dictionaries mention only the greek "molokhe" as mallow for origin, not the hebrew word for king. Etymonline , who usually speculates on many possible etymologies, gives only one for malachite:the greek word for mallow ( www.etymonline.com/index.php?term=malachite ) .Etymonline is based on the articles from the best english dictionaries available( http://www.etymonline.com/index.php )82.240.163.245 (talk) 02:48, 26 January 2012 (UTC)[reply]

File:Malachite, Zaire.jpg to appear as POTD soon

Hello! This is a note to let the editors of this article know that File:Malachite, Zaire.jpg will be appearing as picture of the day on January 20, 2011. You can view and edit the POTD blurb at Template:POTD/2011-01-20. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page so Wikipedia doesn't look bad. :) Thanks! howcheng {chat} 18:10, 17 January 2011 (UTC)[reply]

Picture of the day

A sample of malachite, a green copper carbonate mineral that crystallizes in the monoclinic crystal system. It is typically associated with copper deposits around limestone, and is often found together with azurite. Malachite was used as a mineral pigment in green paints from antiquity until about 1800, and is still used today for decorative purposes and to make jewelry.Photo: JJ Harrison

Archive – More featured pictures...

Variation in colour

What compositional difference causes the variation in colour from pale green to dark green in the bands ? - Rod57 (talk) 11:33, 26 April 2014 (UTC)[reply]

fact check: rumours of toxicity

I've seen some internet rumours that malachite is poisonous, or breaks down and releases poisonous gas when exposed to water, or that the dust is an irritant.

Examples:

I couldn't find any academic sources to back up these claims, and I couldn't find any entries for malachite in the WHMIS or OSHA databases, and I couldn't find any material safety data sheets for malachite.

Is this some kind of urban legend? If so, is the urban legend notable? Does anyone have any good sources for the history of these rumours? -- Gordon Ecker, WikiSloth (talk) 06:11, 24 October 2015 (UTC)[reply]

Cause of green color

I wish the article would say whether malachite is green for the same reason copper exposed to air becomes green. In malachite, it's apparently the color of copper carbonate. Does that mean copper picks up carbon from the carbon dioxide in the air? — Preceding unsigned comment added by 2602:306:BC65:4C39:7874:A00C:3BFD:6D97 (talk) 19:28, 17 April 2016 (UTC)[reply]

I've added a paragraph about this (it starts "Copper artworks...") because I found it interesting. I am a very inexperienced Wikipedia editor though, so I will have broken several formatting rules. Please someone tidy it up. Martyn 222.152.168.58 (talk) 08:29, 20 December 2020 (UTC)[reply]

Since you're inexperienced, and since I want to encourage you to continue learning how to effectively edit Wikipedia, I feel you deserve a bit of an explanation of why your edit was reverted. Like you, I have heard that the green color of copper architecture is due to a thin film of malachite. However, reliable sources, such as those cited in the in the article on Copper in architecture#Natural patinas, indicate that the patina on copper architecture begins as oxides and sulfides, which later are converted to sulfates. In other words, the patina is not malachite after all. This is a good example of why Wikipedia has such strict rules on sourcing of material added to articlles.

I encourage you to register a username here at Wikipedia. You can then receive messages directly to you and not broadcast to whoever is (typically) randomly assigned your IP address on a given day. And keep learning how to contribute. --Kent G. Budge (talk) 19:10, 20 December 2020 (UTC)[reply]

External links modified

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Gallery

Perhaps I should just be bold and remove it, but perhaps there's a good reason for the gallery? Would it not be better to just put in a Wikicommons link for Malachite? Per WP:GALLERY. --Kent G. Budge (talk) 16:40, 22 November 2020 (UTC)[reply]

Keep - the Commons category contains 1,773 images, not counting those in the subcategories. Having a gallery consisting of a selection of the finest examples (mineral specimens + artworks) adds to the article. Bahudhara (talk) 02:51, 23 November 2020 (UTC)[reply]

Wiki Course; Adding to the article

Hi everyone, I'm currently in a Wiki Education course and have been assigned this page. I plan on adding some information on the chemistry of smelting malachite to create copper ore and mentioning new research that is coming out for copper ore extraction. I feel this would fit nicely in the Uses section but wanted some input. I was also looking at the Lead and was thinking of adding in a summary sentence to describe what is presented in the article. Here is my sandbox if anyone wants to look and give suggestions. [[1]] All the best!JazChapman (talk) 23:54, 11 March 2021 (UTC)[reply]

Wiki Course Evaluation, adding information

I’m currently evaluating this article as part of a WikiEdu course. I'm also just relatively interested in mineralogy, and this is one mineral I'm particularly fond of so I figured I can leave some feedback here. I noticed that the 'Uses' section could be modified a bit to include more uses since it only has about two main uses and not all possible uses (such as in jewelry). The 'Occurrence' section of the article could also go into more detail about its relationship with azurite and other copper bearing minerals as well as how malachite can be a pseudomorph of these other minerals since it is mentioned in the article lead. Squidsauce9 (talk) 00:00, 12 November 2023 (UTC)[reply]