Strunz claimed that Moore's "jahnsite" was xanthoxenite; a mineral that Clifford Frondel noted at the Palermo, New Hampshire pegmatite in 1949 was at first called xanthoxenite but later shown to be
stewartite; later, phosphate pegmatites in New Hampshire and South Dakota, as studied by prominent mineralogists including Mary Mrose, Paul B.
Secondary phosphates found in the Stewart pegmatite include hureaulite, sicklerite, purpurite, heterosite, stewartite, and phosphosiderite.
Along with gem spodumene and tourmaline, Jahns and Wright (1951) list quartz, perthitic microdine, albite, beryl (morganite and aquamarine), bavenite, bertrandite, numerous bismuth-containing minerals including native bismuth, bismuthialte, bismutite, and bismite, and nurnerous phosphates including lithiophilite, triphylite, sickletite, purpurite, heterosite, stewartite, and hureaulite.