Talk:Perlite

Soil Mid‑importance

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Rocks and minerals Mid‑importance

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Geology Mid‑importance

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Volcanoes Mid‑importance

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It is requested that an image or photograph of unexpanded or "raw" vermiculite, as it occurs naturally before processing be included in this article to improve its quality. Please replace this template with a more specific media request template where possible.
The Free Image Search Tool or Openverse Creative Commons Search may be able to locate suitable images on Flickr and other web sites.

Upload

Where is an explaination for perlite as a pattern of steel? --217.235.9.187 20:56, 21 Mar 2005 (UTC)

You want Pearlite, not Perlite.

Image Request

Is it necessary? There are multiple photos in the article. I'd remove the reqphoto tag, but I want more input first.

AngryZinogre (talk) 05:01, 1 October 2017 (UTC)[reply]

Vermiculite Reference

Vermiculite was tagged here as only used in horticulture, which is not accurate. Perlite and Vermiculite are "cousins", with many exfoliators making products using both lightweight aggregates.--Achim 23:34, 27 August 2006 (UTC)[reply]

The reason was that horticulture is the main application in which vermiculite competes with perlite.

Similarly, diatomite, is not only used for filter-aids, but it is the main application in which diatomite competes with perlite.--FocalPoint 15:32, 28 August 2006 (UTC)[reply]

Element box

An element box is needed for this article.Anwar 16:05, 31 May 2007 (UTC)[reply]

fix dup ref

Someone might consider consolidating refs (currently #s 2+5) to "http://minerals.usgs.gov/minerals/pubs/commodity/perlite/mcs-2008-perli.pdf" (I don't remember how to do it; somehow involves assigning an ID to the first ref, then referencing that ID at subsequent citations).

philiptdotcom (talk) 13:39, 14 August 2009 (UTC)[reply]

Done —EncMstr (talk) 15:45, 14 August 2009 (UTC)[reply]

Mineral composition?

Perlite is a rock name or perhaps primarily a rock name. What is the mineral composition of this rock? Is it perhaps microcrystalline vermiculite that gives the expansion?150.227.15.253 (talk) 09:43, 11 January 2018 (UTC)[reply]

Being an amorphous glass it has no mineral crystals, but the article includes a typical chemical composition. Vermiculite is a clay mineral, so the two are entirely unrelated. The expansion in perlite is also due to the evaporation of trapped water, but there the similarity ends. Mikenorton (talk) 10:12, 11 January 2018 (UTC)[reply]

External links modified (January 2018)

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Density

The source that is given as proof of the density of perlite does not give any information on density. where does this information come from? 77.87.228.70 (talk) 11:41, 11 December 2024 (UTC)[reply]