Zhemchuzhnikovite Mineral Data

General Zhemchuzhnikovite Information

Chemical Formula:

NaMg(Al,Fe+++)(C2O4)3•8(H2O)

Composition:

Molecular Weight = 494.00 gm

Sodium 4.65 % Na 6.27 % Na₂O

Magnesium 4.92 % Mg 8.16 % MgO

Aluminum 3.28 % Al 6.19 % Al₂O₃

Iron 4.52 % Fe 6.47 % Fe₂O₃

Hydrogen 3.26 % H 29.17 % H₂O

Carbon 14.59 % C 43.74 % C₂O₃

Oxygen 64.77 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaMgAl_0.6Fe³⁺_0.4(C₂O₄)₃•8(H₂O)

Environment:

Lignite or coal mines.

IMA Status:

Approved IMA 1963

Locality:

Chaitumusuk deposits, Lena River, Siberia. Link to MinDat.org Location Data.

Name Origin:

Named for Yurii Apollonovich Zhemchezhnikov (1885-1957), Russian geologist.

Name Pronunciation:

Zhemchuzhnikovite + Pronunciation

Zhemchuzhnikovite Crystallography

Axial Ratios:

a:c = 1:0.75044

Cell Dimensions:

a = 16.67, c = 12.51, Z = 6; V = 3,010.64 Den(Calc)= 1.63

Crystal System:

Trigonal Space Group: Unk

Physical Properties of Zhemchuzhnikovite

Cleavage:

{0001} Good

Color:

Gray green, Violet.

Density:

1.69

Diaphaneity:

Transparent to Translucent

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Fibrous - Crystals made up of fibers.

Habit:

Water Soluble - Water soluble mineral.

Hardness:

2 - Gypsum

Luster:

Vitreous (Glassy)

Optical Properties of Zhemchuzhnikovite

Dichroism (e):

reddish violet.

Dichroism (w):

greenish yellow.

Gladstone-Dale:

CI meas= -0.634 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.694 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2721,KPDmeas= 0.2624,KC= 0.1606
Ncalc = 1.26 - 1.27

Optical Data:

Uniaxial (-), e=1.408, w=1.479, bire=0.0710.

Calculated Properties of Zhemchuzhnikovite

Electron Density:

Bulk Density (Electron Density)=1.73 gm/cc
note: Specific Gravity of Zhemchuzhnikovite =1.69 gm/cc.

Fermion Index:

Fermion Index = 0.0077991788
Boson Index = 0.9922008212

Photoelectric:

PE_{Zhemchuzhnikovite}= 1.81 barns/electron
U=PE_{Zhemchuzhnikovite} x rElectron Density= 3.13 barns/cc.

Radioactivity:

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

Zhemchuzhnikovite Classification

Dana Class:

50.01.07.02 (50)Salts of Organic Acids

(50.01)(Oxalates)

(50.01.07)Stepanovite Group

50.01.07.01 Stepanovite NaMgFe(C2O4)3•8-9(H2O) Unk Trig

50.01.07.02 Zhemchuzhnikovite NaMg(Al,Fe)(C2O4)3•8(H2O) Unk Trig

Strunz Class:

10.AB.35 10 - ORGANIC COMPOUNDS

10.A - Salts of Organic Acids

10.AB -Oxalates

10.AB.35 Zhemchuzhnikovite NaMg(Al,Fe)(C2O4)3•8(H2O) Unk Trig

Other Zhemchuzhnikovite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Zhemchuzhnikovite :
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

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Zhemchuzhnikovite

NaMg(Al,Fe+++)(C2O4)3•8(H2O)
Dana No: 50.01.07.02 Strunz No: 10.AB.35
Locality:

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