Basis data mineral & terapi kristalMineralWoodruffiteHenk Smeets – tomeikminerals.com·CC BY 4.0·WikimediaWoodruffiteZn2⁺x/2(Mn4+1-xMn3⁺x)O2*yH2OMonoclino IMA grandfatheredEtimologiDinamai dari Samuel Woodruff.