| | Book (edition) | Leigh McDonald Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa...geographic district names have been replaced with a more descriptive term, metallic mineral district. This...reader to learn more about the geology of the district and to possibly predict the minerals that could...districts. Where possible, the metallic mineral district for each mineral locality is given for the mineral...material was cut parallel to the grain. The Blue Ball Mine, in Gila County, has produced thousands of azurite |
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