Capgaronnite Mineral Data

General Capgaronnite Information

Chemical Formula:

HgAg(Cl,Br,I)S

Composition:

Molecular Weight = 398.46 gm

Silver 27.07 % Ag

Mercury 50.34 % Hg

Sulfur 8.05 % S

Iodine 3.18 % I

Bromine 6.02 % Br

Chlorine 5.34 % Cl

______

100.00 %

Empirical Formula:

HgAgCl_0.6Br_0.3I_0.1S

IMA Status:

Approved IMA 1991

Locality:

Link to MinDat.org Location Data.

Name Origin:

Named in 1992 for the locality.

Synonym:

ICSD 66329

IMA1990-011

PDF 44-1451

Capgaronnite Image

Images:

Capgaronnite

Comments: Very small black prismatic crystals of capgaronnite in matrix.
Location: Cap Garonne, Var, France. Scale: Picture size 0.7 mm.
© Thomas Witzke / Abraxas-Verlag

Capgaronnite Crystallography

Axial Ratios:

a:b:c =0.5285:1:0.3518

Cell Dimensions:

a = 6.803, b = 12.87, c = 4.528, Z = 4; V = 396.45 Den(Calc)= 6.68

Crystal System:

Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 2₁2₁2₁

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.664(1), 3.637(0.6), 3.762(0.6),

Physical Properties of Capgaronnite

Cleavage:

{010} Perfect

Color:

Brownish black, Black.

Density:

6.19

Diaphaneity:

Translucent to Opaque

Luster:

Subadamantine

Streak:

brownish black

Optical Properties of Capgaronnite

Gladstone-Dale:

CI meas= -0.251 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.159 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1871,KPDmeas= 0.2019,KC= 0.1614
Ncalc = 2 - 2.08

Optical Data:

Biaxial (-), a=2.2, g=2.3, bire=0.1000

Calculated Properties of Capgaronnite

Electron Density:

Bulk Density (Electron Density)=5.67 gm/cc
note: Specific Gravity of Capgaronnite =6.68 gm/cc.

Fermion Index:

Fermion Index = 0.15
Boson Index = 0.85

Photoelectric:

PE_Capgaronnite= 931.88 barns/electron
U=PE_Capgaronnite x rElectron Density=5,280.47 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Capgaronnite is Not Radioactive

Capgaronnite Classification

Dana Class:

02.15.06.01 (02)Sulfides - Including Selenides and Tellurides

(02.15)(Chlorides)

(02.15.06)Dana Group

02.15.06.01 Capgaronnite HgAg(Cl,Br,I)S P 2₁2₁2₁ 2 2 2

02.15.06.02 Iltisite! HgSAg(Cl,Br) P 6₂,P 6₂22 6 2 2

Strunz Class:

02.FC.20a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O

02.FC -With Cl, Br, I (halide-sulfides)

02.FC.20a Capgaronnite HgAg(Cl,Br,I)S P 2₁2₁2₁ 2 2 2

Other Capgaronnite Information

References:

NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.77,p197-200,1992) OPTIC PROP.(Am.Min.,Vol.77,p197-200,1992)

See Also:

Links to other databases for Capgaronnite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Capgaronnite

HgAg(Cl,Br,I)S
Dana No: 02.15.06.01 Strunz No: 02.FC.20a
Locality:

Notes:

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