![Phosphate minerals / Borate minerals / Cyclosilicates / Tectosilicates / Beryllium minerals / Pollucite / Elbaite / Pegmatite / Eosphorite / Crystallography / Silicate minerals / Chemistry Phosphate minerals / Borate minerals / Cyclosilicates / Tectosilicates / Beryllium minerals / Pollucite / Elbaite / Pegmatite / Eosphorite / Crystallography / Silicate minerals / Chemistry](https://www.pdfsearch.io/img/a50097d7109fb1b6e345c6ab0b6e2189.jpg)
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City Paris / / Country Norway / United States / / Facility Follow trail / Harvard University / / IndustryTerm feldspar mining operations / active mining operations / / Organization Harvard / Harvard University / / Person Frank Perham / / / ProvinceOrState Maine / /
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