Works of "Research Collection"
Place Collected: Helsinki
Place Collected: Madagascar
Place Collected: Narssarssuk Pegmatite
Place Collected: Crabtree Mine
Place Collected: near Engle Station
Place Collected: Vizagapatnam Dist
Place Collected: Mt. Ramasso
Place Collected: near Santa Rosalia
Place Collected: near Santa Rosalia
Place Collected: near Santa Rosalia