Category talk:Cobalt minerals is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use
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Category:Cobalt minerals 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
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