Berryite Mineral Data

General Berryite Information
Chemical Formula:	Cu3Ag2Pb3Bi7S16
Composition:	Molecular Weight = 3,015.01 gm
	Copper 6.18 % Cu
	Silver 6.87 % Ag
	Bismuth 49.00 % Bi
	Lead 20.89 % Pb
	Sulfur 17.06 % S
	______
	100.00 %
Empirical Formula:	Cu_2.93Ag_1.92Pb_3.04Bi_7.07S_16.04
Environment:	In quartz veins with other sulfides and sulfosalts, and in siderite-rich cryolite.
IMA Status:	Approved IMA 1966
Locality:	From the Missouri mine, Park Co., and the Mike mine, San Juan Co., Colorado, USA. Link to MinDat.org Location Data.
Name Origin:	For Professor Leonard Gascoigne Berry (1914-1982), mineralogist, Queen's University, Toronto, Canada, who obtained the first X-ray powder pattern of the mineral.
Name Pronunciation:	Berryite
Synonym:	IMA1965-013