Rocks and minerals NA‑class

Category:Sedimentary rocks is part of WikiProject Rocks and minerals, an attempt at creating a standardized, informative, comprehensive and easy-to-use rocks and minerals resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information.Rocks and mineralsWikipedia:WikiProject Rocks and mineralsTemplate:WikiProject Rocks and mineralsRocks and minerals articles NA This category does not require a rating on Wikipedia's content assessment scale.

I have made Category:Building stone a sub category of Category:Sedimentary rocks but have not completed the job of of the necessary transfer of building stones from the Category:Sedimentary rocks list. I thought it best to give people an opportunity to comment before going too far. There is the problem of the granite and marble building stones which are not sedimentary but a Building stones category would be useful to people interested in architecture, for example. ( RJP 18:00, 17 January 2007 (UTC)) reply