| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Reed, Juliet C. (1976), Annotated Biblio. of Mins. New to the PA List 1965-1974, The Min. Soc. of PA, Inc.: 54; Sims, Samuel J. (1968), "The Grace Mine Magnetite Dep., Berks Co., PA" in Ridge, John D. ed., Ore Deps. of the US 1933-1967, Vol I:115. | | Data | |
| Mineral Data: | Click here to view Marialite data | | Locality Data: | Click here to view Grace Mine, Morgantown, Berks Co., Pennsylvania, USA |
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