Talk:Aluminium arsenate

Natural occurrence
Alarsite, an extremely rare mineral (https://www.mindat.org/min-94.html), is the natural form of anhydrous aluminium arsenate. The dihydrate is known as mansfieldite (https://www.mindat.org/min-2568.html). Eudialytos (talk) 00:51, 4 November 2017 (UTC)
 * A helpful note. It appears that many, many compounds, even highly water soluble materials, are found somewhere in trace amounts.  Caverns, fumaroles, etc.  The question is whether these trace occurrences are significant (=notability).  Some are highly notable, halite, Glauber's salt.  But IMHO, many are not worth mentioning.  One solution to the problem, if there is one, would be to create an article on such ultra rare, water soluble minerals. Not exactly sure how to deal with these factoids. --Smokefoot (talk) 04:58, 4 November 2017 (UTC)