Szymanskiite Mineral Data

Szymanskiite Mineral Data +

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General Szymanskiite Information

Chemical Formula:

Hg+16(Ni,Mg)6(H3O)8(CO3)12·3(H2O)

Composition:

Molecular Weight = 4,436.34 gm

Magnesium 0.82 % Mg 1.36 % MgO

Nickel 5.95 % Ni 8.39 % Ni₂O₃

Mercury 72.34 % Hg 75.23 % Hg₂O

Hydrogen 0.68 % H 6.09 % H₂O

Carbon 3.25 % C 11.90 % CO₂

Oxygen 16.95 % O

______ ______

100.00 % 102.98 % = TOTAL OXIDE

Empirical Formula:

Hg₁₆6(Ni_0.75)6(Mg_0.25)(H₃O)₈(CO₃)₁₂·3(H₂O)

IMA Status:

Approved IMA 1990

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 69128

IMA1989-045

PDF 44-1395

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Szymanskiite Crystallography

Axial Ratios:

a:c = 1:0.34516

Cell Dimensions:

a = 17.415, c = 6.011, Z = 1; V = 1,578.79 Den(Calc)= 4.67

Crystal System:

Hexagonal - PyramidalH-M Symbol (6) Space Group: P 6₃

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

By Intensity(I/I_o): 5.6(1), 14.9(1), 3.299(0.8),

Crystal Structure:

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Szymanski J T , Roberts A C , The Canadian Mineralogist , 28 (1990) p.709-718, The crystal structure of szymanskiite, a partly disordered (Hg-Hg)2+,, (Ni,Mg)2+ hydronium-carbonate-hydroxide-hydrate

Physical Properties of Szymanskiite

Cleavage:

[1010] Indistinct

Color:

Blue green, Blue gray, Black.

Diaphaniety:

Transparent

Luster:

Vitreous (Glassy)

Streak:

bluish white

Optical Properties of Szymanskiite

Gladstone-Dale:

CI calc= 0.087 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1693,KC= 0.1853

Optical Data:

Uniaxial (-), e=1.786, w=1.795, bire=0.0090.

Calculated Properties of Szymanskiite

Electron Density:

r_electron=4.00 gm/cc
note: r_Szymanskiite=4.67 gm/cc.

Fermion Index

Fermion Index = 0.22041
Boson Index = 0.77959

Photoelectric:

PE_Szymanskiite=1,196.96 barns/electron
U=PE_Szymanskiite x r_electron=4,793.04 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Szymanskiite is Not Radioactive

Szymanskiite Classification

Dana Class:

16b.7.15.1 (16b)Carbonates - Hydroxyl or Halogen

(16b.7)Dana Type

(16b.7.15)Dana Group

16b.7.15.1 Szymanskiite Hg16(Ni,Mg)6(H3O)8(CO3)12·3(H2O) P 6₃ 6

Strunz Class:

V/E.05-40 V - Nitrates, Carbonates and Borates

V/E - Water-bearing carbonates with unfamiliar anions

V/E.05 - Otwayite - Szymanskite series

V/E.05-10 Otwayite Ni2(CO3)(OH)2·(H2O) Unk Ortho

V/E.05-20 Zaratite Ni3(CO3)(OH)4·4(H2O) Unk (in part amorphous) Cubic

V/E.05-30 Kambaldaite NaNi4(CO3)3(OH)3·3(H2O) P 6₃ 6

V/E.05-40 Szymanskiite Hg16(Ni,Mg)6(H3O)8(CO3)12·3(H2O) P 6₃ 6

Other Szymanskiite Information

References:

PHYS. PROP.(Am.Min.,Vol.76,p1731,1991) OPTIC PROP.(Am.Min.,Vol.76,p1731,1991)

See Also:

Links to other databases for Szymanskiite :
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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Szymanskiite

Hg+16(Ni,Mg)6(H3O)8(CO3)12·3(H2O)
Dana No: 16b.7.15.1 Strunz No: V/E.05-40
Locality:

Notes: