Talk:Perlite

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)

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)

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)

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

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)


 * ✅ —EncMstr (talk) 15:45, 14 August 2009 (UTC)

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)


 * 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)

External links modified (January 2018)
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