Gianellaite Mineral Data + Say GIANELLAITE


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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 IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Link to MinDat.org Location Data.
 

Gianellaite Image

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Gianellaite

Comments: Yellow crystalline coatings of gianellaite on calcite.
Location: Mariposa Mine, Terlingua, Brewster County, Texas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Gianellaite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 9.5215, Z = 4; V = 863.21 Den(Calc)= 7.13
Help on Crystal System: Crystal System: Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: F43m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.743(1), 2.872(1), 5.511(0.8),
 

Physical Properties of Gianellaite

Help on Color: Color: Yellow, Straw yellow.
Help on Density: Density: 7.19
Help on Hardness: Hardness: 3 - Calcite
Help on Streak: Streak: light yellow
 

Optical Properties of Gianellaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.041 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.05 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1522,KPDmeas= 0.1509,KC= 0.145
Help on Optical Data: Optical Data: Isotropic, n=2.085.
 

Calculated Properties of Gianellaite

Help on Electron Density: Electron Density:

relectron=5.93 gm/cc
note: rGianellaite =7.19 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.29197
Boson Index = 0.70803
Help on Photoelectric: Photoelectric:

PEGianellaite =1,486.73 barns/electron
U=PEGianellaite x relectron=8,815.29 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Gianellaite is Not Radioactive

 

Gianellaite Classification

Help on  Dana Class: Dana Class: 28.2.4.1 (28)Anhydrous Acid and Sulfates
  (28.2)(A+)2 XO4
  (28.2.4)Dana Group
 
28.2.4.1 Gianellaite Hg4(SO4)N2 F43m 4 3m
Help on  Strunz Class: Strunz Class: III/D.06-60 III - Halogenides
  III/D - Oxi-halogenides with mercury
  III/D.06 - Terlinguaite - Comancheite
 
III/D.06-10 Terlinguaite HgHgClO C 2/c 2/m
 
III/D.06-11 Aurivilliusite! HgHgOI C 2/m 2/m
 
III/D.06-12 Hanawaltite Hg6Hg[Cl,(OH)]2O3 Pbma 2/m 2/m 2/m
 
III/D.06-13 Tedhadleyite! HgHg10O4I2(Cl1.16Br0.84)2 A1 1
 
III/D.06-20 Poyarkovite Hg3ClO C 2/c 2/m
 
III/D.06-30 Kadyrelite Hg4(Br,Cl)2O I a3d 4/m 3 2/m
 
III/D.06-40 Eglestonite Hg6Cl3O(OH)(?) I a3d 4/m 3 2/m
 
III/D.06-45 Vasilyevite! (Hg2)10O6I3Cl(CO3) P1 1
 
III/D.06-50 Mosesite Hg2N(Cl,SO4,MoO4,CO3)·(H2O) F43m 4 3m
 
III/D.06-60 Gianellaite Hg4(SO4)N2 F43m 4 3m
 
III/D.06-70 Kleinite Hg2N(Cl,SO4)·n(H2O) C63/mmc 6/m 2/m 2/m
 
III/D.06-80 Pinchite Hg5O4Cl2 I bam 2/m 2/m 2/m
 
III/D.06-90 Comancheite Hg13(Cl,Br)8O9 Pnnm,Pnn2 Ortho
 

Other Gianellaite Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Gianellaite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Gianellaite

Hg4(SO4)N2
Dana No: 28.2.4.1 Strunz No: III/D.06-60
Locality:

 

Notes:

 

 
   
 
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