| | Description | |
| Type Locality: | Ragra Mine (Minasragra), Junín, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru is the type locality for Hewettite | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Hillebrand, Merwin, and Wright (1914) Proceedings of the American Philosophical Society (1914): 53: 31-54; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1060. |
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