Szymanskiite Mineral Data

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 7.58 % NiO

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 % 102.16 % = TOTAL OXIDE

Empirical Formula:

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

Environment:

Found in vugs, cavities, and disseminated in massive quartz.

IMA Status:

Approved IMA 1990

Locality:

Clear Creek Hg mine, New Idrea district, San Benito, County, Callifornia, USA. Link to MinDat.org Location Data.

Name Origin:

Named for Jan T. Szymanski (b1938), CANMET crystallographer, Ottawa, Canada who solved the crystal structure.

Name Pronunciation:

Szymanskiite + Pronunciation

Synonym:

ICSD 69128

IMA1989-045

PDF 44-1395

Szymanskiite Image

Images:

Szymanskiite

Comments: SEM image of a group of szymafskiite crystals. (CanMin, v28:703).
Location: Clear Creek mercury mine, New Idria district, San Benito County, California. Scale: See Image.
© Canadian Mineralogist

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 - Pyramidal H-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),

Physical Properties of Szymanskiite

Cleavage:

{1010} Indistinct

Color:

Blue green, Blue gray, Black.

Diaphaneity:

Transparent

Luster:

Vitreous (Glassy)

Streak:

bluish white

Optical Properties of Szymanskiite

Dichroism (e):

bluish green.

Dichroism (w):

yellowish green.

Gladstone-Dale:

CI calc= 0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1693,KC= 0.1702
Ncalc = 1.79

Optical Data:

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

Calculated Properties of Szymanskiite

Electron Density:

Bulk Density (Electron Density)=4.00 gm/cc
note: Specific Gravity of Szymanskiite =4.67 gm/cc.

Fermion Index:

Fermion Index = 0.22
Boson Index = 0.78

Photoelectric:

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

Radioactivity:

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

Szymanskiite Classification

Dana Class:

16b.07.15.01 (16b)Carbonates - Hydroxyl or Halogen

(16b.07)Dana Type

(16b.07.15)Dana Group

16b.07.15.01 Szymanskiite Hg16(Ni,Mg)6(H3O)8(CO3)12•3(H2O) P 6₃ 6

Strunz Class:

05.DB.30 05 - CARBONATES (NITRATES)

05.D - Carbonates with Additional Anions, with H2O

05.DB -With large and medium-sized cations

05.DB.30 Szymanskiite Hg16(Ni,Mg)6(H3O)8(CO3)12•3(H2O) P 6₃ 6

Other Szymanskiite Information

References:

NAME( Dana8) 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 - 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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Szymanskiite

Hg+16(Ni,Mg)6(H3O)8(CO3)12•3(H2O)
Dana No: 16b.07.15.01 Strunz No: 05.DB.30
Locality:

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