Woodruffite Mineral Data

General Woodruffite Information
Chemical Formula:	(Zn,Mn++)2Mn++++5O12•4(H2O)
Composition:	Molecular Weight = 668.48 gm
	Manganese 41.91 % Mn 1.06 % MnO / 65.03 % MnO₂
	Zinc 18.59 % Zn 23.13 % ZnO
	Hydrogen 1.21 % H 10.78 % H₂O
	Oxygen 38.29 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Zn_1.9Mn²⁺_0.1Mn⁴⁺₅O₁₂•4(H₂O)
Environment:	Oxidized material derived from the orebody outcrop.
IMA Status:	Valid Species (Pre-IMA) 1953
Locality:	Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA. Link to MinDat.org Location Data.
Name Origin:	Named for Samuel Woodruff, late-nineteenth-century miner and mineral collector at Franklin, who collected and preserved many of the finest specimens found at that locality.
Name Pronunciation:	Woodruffite + Pronunciation