Aluminocopiapite Mineral Data

General Aluminocopiapite Information
Chemical Formula:	Al2/3Fe+++4(SO4)6O(OH)2•20(H2O)
Composition:	Molecular Weight = 1,212.08 gm
	Aluminum 1.48 % Al 2.80 % Al₂O₃
	Iron 18.43 % Fe 26.35 % Fe₂O₃
	Hydrogen 3.49 % H 31.21 % H₂O
	Sulfur 15.87 % S 39.63 % SO₃
	Oxygen 60.72 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Al_0.66Fe³⁺₄(SO₄)₆(OH)₂•20(H₂O)
Environment:	Secondary mineral typically formed by the oxidation of pyrite in shales and coal; may be a fumarolic reaction product.
IMA Status:	Valid Species (Pre-IMA) 1947
Locality:	"Temple Rock", [probably the Temple Mountain district, Emery Co.,] Utah; at Island Mountain, Trinity Co., and the Champion mine, White Mountains, Mono Co., California, USA. Link to MinDat.org Location Data.
Name Origin:	Named for its content of aluminum and relation to the copiapite group.
Name Pronunciation:	Aluminocopiapite