Kuznetsovite Mineral Data

Kuznetsovite Mineral Data +

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General Kuznetsovite Information

Chemical Formula:

Hg3Cl(AsO4)

Composition:

Molecular Weight = 776.14 gm

Mercury 77.53 % Hg 80.63 % Hg₂O

Arsenic 9.65 % As 14.81 % As₂O₅

Chlorine 4.57 % Cl 4.57 % Cl

- % Cl -1.03 % -O=Cl₂

Oxygen 8.25 % O

______ ______

100.00 % 98.97 % = TOTAL OXIDE

Empirical Formula:

Hg₃Cl(AsO₄)

IMA Status:

Approved IMA 1980 (Dana # Added)

Locality:

Arzak deposit, Tuva, Russia. Khaidarkan deposit, Kirghizia Link to MinDat.org Location Data.

Name Origin:

Named for V. A. Kuznetsov.

Synonym:

ICSD 39493

PDF 35-657

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Kuznetsovite Crystallography

Cell Dimensions:

a = 8.4013, Z = 4; V = 592.98 Den(Calc)= 8.69

Crystal System:

Isometric - TetartoidalH-M Symbol (2 3) Space Group: P 2₁3

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

By Intensity(I/I_o): 2.53(1), 2.81(0.7), 4.86(0.6),

Physical Properties of Kuznetsovite

Cleavage:

None

Color:

Yellow brown, Honey brown, Light brown.

Density:

8.64 - 8.82, Average = 8.73

Fracture:

Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.

Hardness:

2.5-3 - Finger Nail-Calcite

Luster:

Vitreous - Adamantine

Streak:

orange

Optical Properties of Kuznetsovite

Optical Data:

NCalc= 2.34 - from Gladstone-Dale relationship (KC = 0.1545) where Ncalc=Dcalc*KC+1
NCalc= 2.35 - from Gladstone-Dale relationship (KC = 0.1545) where Ncalc=Dmeas*KC+1

Calculated Properties of Kuznetsovite

Electron Density:

r_electron=7.21 gm/cc
note: r_Kuznetsovite=8.69 gm/cc.

Fermion Index

Fermion Index = 0.23419
Boson Index = 0.76581

Photoelectric:

PE_Kuznetsovite=1,330.47 barns/electron
U=PE_Kuznetsovite x r_electron=9,593.37 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Kuznetsovite is Not Radioactive

Kuznetsovite Classification

Dana Class:

38.5.11.1 (38)Anhydrous Phosphates, etc

(38.5)with miscellaneous formulae

(38.5.11)Dana Group

38.5.11.1 Kuznetsovite ! Hg3Cl(AsO4) P 2₁3 2 3

Strunz Class:

VII/B.30-30 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb

VII/B.30 - Petitjeanite - Kuznetsovite series

VII/B.30-01 Smrkovecite! Bi2O(OH)(PO4) P 2₁/c 2/m

VII/B.30-02 Atelestite Bi8(AsO4)3(OH)5O5 P 2₁/a 2/m

VII/B.30-03 Hechtsbergite! Bi2O(OH)(VO4) P 2₁/c 2/m

VII/B.30-05 Petitjeanite Bi3(PO4)2O(OH) P1 1

VII/B.30-10 Preisingerite Bi3(AsO4)2O(OH) P1 1

VII/B.30-20 Schumacherite Bi3[(V,As,P)O4]2O(OH) P1 1

VII/B.30-30 Kuznetsovite Hg3Cl(AsO4) P 2₁3 2 3

Other Kuznetsovite Information

References:

NAME( AmMin) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Kuznetsovite :
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 - WWW-MINCRYST 13 -École des Mines de Paris

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Print or Cut-and-Paste your Kuznetsovite Specimen Label here :

Kuznetsovite

Hg3Cl(AsO4)
Dana No: 38.5.11.1 Strunz No: VII/B.30-30
Locality:

Notes: