Mineralogy Database

Gianellaite Mineral Data

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General Gianellaite Information

Help on Chemical  Formula: Chemical Formula: Hg4(SO4)N2
Help on Composition: Composition: Molecular Weight = 926.44 gm
   Mercury   86.61 %  Hg   90.06 % Hg2O
   Sulfur     3.46 %  S     8.64 % SO3
   Nitrogen   3.02 %  N     5.62 % (NH4)2O
   Oxygen     6.91 %  O
            ______        ______ 
            100.00 %      104.32 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Hg4(SO4)N2
Help on Environment: Environment: Secondary mineral coating fracture surfaces in oxidized portions of a hydrothermal mercury deposit, the nitrogen likely derived from decaying organic matter.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Perry pit, Mariposa mine, Terlingua district, Brewster Co., Texas. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Vincent Paul Gianella (1886-1983), Head of the Department of Geology, MacKay School of Mines, University of Nevada, Reno, Nevada, USA.
Help on Name Pronunciation: Name Pronunciation: Gianellaite + Pronunciation Say GIANELLAITE