Jurbanite Mineral Data

General Jurbanite Information
Chemical Formula:	Al(SO4)(OH)•5(H2O)
Composition:	Molecular Weight = 230.13 gm
	Aluminum 11.72 % Al 22.15 % Al₂O₃
	Hydrogen 4.82 % H 43.06 % H₂O
	Sulfur 13.93 % S 34.79 % SO₃
	Oxygen 69.52 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Al(SO₄)(OH)•5(H₂O)
Environment:	Secondary crusts in humid tunnels in oxidized portions of sulfide deposits in aluminous rocks; apparently deposited directly from mine water at about 27 deg C and 100% humidity.
IMA Status:	Approved IMA 1976
Locality:	San Manuel mine, Mammoth district, Pinal Co., Arizona, USA. Link to MinDat.org Location Data.
Name Origin:	Named for Joseph John Urban (1915-1997), Tucson, Arizona, USA, mineral collector who first observed the natural material.
Name Pronunciation:	Jurbanite + Pronunciation
Synonym:	ICSD 61493
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