| | Description | |
| Comments: | The first US locality for Tochilinite, collected in the summer of 1975 by Byron Brookmeyer. Some of the most complete data published on the properties of Tochilinite were compiled using specimens collected by Mr. Brookmeyer at Grace mine. | | Habit: | aggregate in Gypsum associated with enhydro inclusions, on calcite and laminate coatings on calcite | | Colour: | Black greasy Graphite-like, also coatings giving calcite a Bronzy appearance | | UV Fluorescence: | none | | Quality of samples: | Good crystals or rich for species - important (!) | | Rarity at site: | Rare | | Confirmation | |
| Validity: | Confirmed | | Confirmation Methods: | XRD
| | References | |
| References: | Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990 Ref. 2) The Mineralogy of Pennsylvania; Robert Smith II, Pgs. 256-261 | | Data | |
| Mineral Data: | Click here to view Tochilinite data | | Locality Data: | Click here to view Grace Mine, Morgantown, Berks Co., Pennsylvania, USA |
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