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Mount Grace, Warwick, Franklin Co., Massachusetts, USA
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | ||
|---|---|---|
| Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | ||
| Dravite | 9.CK.05 | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Epidote | 9.BG.05a | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Unclassified Minerals | ||
| 'Hornblende' | - | |
4 entries listed. 3 valid minerals.
References
Emerson, B. K. (1895): A Mineralogical Lexicon of Franklin, Hampshire, and Hampden Counties, Massachusetts (USGS Bulletin 126).
Francis, C. A. and D. E. Lange (1988): Four Occurrences of Dravite in Western New England (Rocks and Minerals 63:455).
Francis, C. A. and D. E. Lange (1988): Four Occurrences of Dravite in Western New England (Rocks and Minerals 63:455).
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Locality Updated: San Miguel Mine, Moctezuma, Mun. de Moctezuma, Sonora, MexicoFrom David Von Bargen, 24th May 2013 23:52:46