Works of "Research Collection"
Place Collected: From calcite veins near Clyde Park
Place Collected: Spruce Pine
Place Collected: Carolina Pyrophyllite Co.
Place Collected: near Galax
Place Collected: New Cornelia Mine (Ajo Mine)
Place Collected: New Cornelia Mine (Ajo Mine)
Place Collected: Brewer Mine
Place Collected: Hennessey Mine