| | Description | |
| Comments: | On rocks beneath iron hoods over vents of burning pyritic ore. | | Habit: | Globular masses | | Colour: | Black | | Quality of samples: | Excellent - world class for species or very significant. (!!) | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Lausen, C. (1928), Hydrous sulphates formed under fumerolic conditions at the United Verde mine, Am.Min.: 13: 203-229; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 262. | | Data | |
| Mineral Data: | Click here to view Jeromite data | | Locality Data: | Click here to view United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA |
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