Minerals
Franklinphilite
franklinphilite
(K,Na)4(Mn²⁺,Mg,Zn)48(Si,Al)72(O,OH)216·6H2O
Franklinphilite: Mineral information, data and localities. — via zh.mindat.org · Source
Overview
Franklinphilite is a phyllosilicate of the stilpnomelane group. Known from only two localities (with a third unconfirmed locality in Switzerland), it was found exclusively from the Franklin and Sterling Hill mines in Franklin, Sussex County, New Jersey until 2013, when a locality in Wales was confirmed.