This article is ratedStart-class on Wikipedia'scontent assessment scale. It is of interest to the followingWikiProjects:

Gemology and Jewelry:GemstonesLow‑importance This article is within the scope ofWikiProject Gemology and Jewelry, a collaborative effort to improve the coverage ofGemology and Jewelry on Wikipedia. If you would like to participate, please visit the project page, where you can jointhe discussion and see a list of open tasks.Gemology and JewelryWikipedia:WikiProject Gemology and JewelryTemplate:WikiProject Gemology and JewelryGemology and Jewelry Low This article has been rated asLow-importance on theproject's importance scale. This article is supported bythe Gemstones subpage. GeologyLow‑importance This article is within the scope ofWikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-usegeology resource. If you would like to participate, you can choose to edit this article, or visit theproject page for more information.GeologyWikipedia:WikiProject GeologyTemplate:WikiProject GeologyGeology Low This article has been rated asLow-importance on theproject's importance scale.

There's a picture of a piece athttp://en.wikipedia.org/wiki/Image:Chicxulub_shockedquartz.pngshouldn't it be added to this page?—Precedingunsigned comment added by216.65.48.66 (talk)00:34, 1 January 2008 (UTC)[reply]

The imageImage:Chicxulub shockedquartz.png is used in this article under a claim offair use, but it does not have an adequate explanation for why it meets therequirements for such images when used here. In particular, for each page the image is used on, it must have anexplanation linking to that page which explains why it needs to be used on that page. Please check

• That there is anon-free use rationale on the image's description page for the use in this article.
• That this article is linked to from the image description page.

This is an automated notice byFairuseBot. For assistance on the image use policy, seeWikipedia:Media copyright questions. --22:27, 19 May 2008 (UTC)[reply]

I think there should be a picture comparison under one.—Precedingunsigned comment added by207.47.247.201 (talk)22:12, 23 February 2010 (UTC)[reply]

Hello fellow Wikipedians,

I have just modified 2 external links onShocked quartz. Please take a moment to reviewmy edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visitthis simple FaQ for additional information. I made the following changes:

• Added archivehttps://web.archive.org/web/20040305170121/http://mineral.galleries.com/minerals/Silicate/COESITE/COESITE.htm tohttp://mineral.galleries.com/minerals/silicate/coesite/coesite.htm
• Added archivehttps://web.archive.org/web/20040216002413/http://mineral.galleries.com/minerals/oxides/stishovi/stishovi.htm tohttp://mineral.galleries.com/minerals/oxides/stishovi/stishovi.htm

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

YAn editor has reviewed this edit and fixed any errors that were found.

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them withthis tool.
• If you found an error with any archives or the URLs themselves, you can fix them withthis tool.

Cheers.—InternetArchiveBot(Report bug)05:53, 6 May 2017 (UTC)[reply]

• Start-Class Gemology and Jewelry articles
• Low-importance Gemology and Jewelry articles
• WikiProject Gemology and Jewelry - Gemstones
• WikiProject Gemology and Jewelry articles
• Start-Class Geology articles
• Low-importance Geology articles
• Low-importance Start-Class Geology articles
• WikiProject Geology articles

• Talk pages with comments before the first section