This category is within the scope of WikiProject Mining, a collaborative project to organize and improve articles related to mining and mineral industries. If you would like to participate, you can edit the attached category, or visit the project page, where you can see a list of open tasks, join in the discussion, or join the project.MiningWikipedia:WikiProject MiningTemplate:WikiProject MiningMining articles
This category is within the scope of WikiProject Gemology and Jewelry, a collaborative effort to improve the coverage of Gemology and Jewelry on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Gemology and JewelryWikipedia:WikiProject Gemology and JewelryTemplate:WikiProject Gemology and JewelryGemology and Jewelry articles
