Natroxalate Mineral Data

General Natroxalate Information

Chemical Formula:

Na2C2O4

Composition:

Molecular Weight = 134.00 gm

Sodium 34.31 % Na 46.25 % Na₂O

Carbon 17.93 % C 53.75 % C₂O₃

Oxygen 47.76 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₂(C₂O₄)

IMA Status:

Approved IMA 1996 (Dana # Added)

Locality:

Link to MinDat.org Location Data.

Name Origin:

Named after its chemical composition of sodium (Na) and oxalate (C2O4).

Name Pronunciation:

Natroxalate + Pronunciation

Synonym:

IMA1994-053

Natroxalate Image

Images:

Natroxalate

Comments: Colorless transparent crystalline natroxalate fragment.
Location: Mount Kukisvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Natroxalate Crystallography

Axial Ratios:

a:b:c =1.9954:1:0.6658

Cell Dimensions:

a = 10.426, b = 5.225, c = 3.479, Z = 2; beta = 93.14° V = 189.24 Den(Calc)= 2.35

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2₁/a

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

By Intensity(I/I_o): 2.826(1), 2.602(0.56), 2.334(0.33),

Physical Properties of Natroxalate

Cleavage:

{100} Perfect, {001} Indistinct

Color:

Colorless, White, Light yellow.

Density:

2.32

Diaphaneity:

Transparent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

3 - Calcite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Natroxalate

Gladstone-Dale:

CI meas= -1.503 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -1.471 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2172,KPDmeas= 0.22,KC= 0.0879
Ncalc = 1.2 - 1.21

Optical Data:

Biaxial (-), a=1.415, b=1.524, g=1.592, bire=0.1770

Calculated Properties of Natroxalate

Electron Density:

Bulk Density (Electron Density)=2.31 gm/cc
note: Specific Gravity of Natroxalate =2.35 gm/cc.

Fermion Index:

Fermion Index = 0.0022012146
Boson Index = 0.9977987854

Photoelectric:

PE_Natroxalate= 0.71 barns/electron
U=PE_Natroxalate x rElectron Density= 1.65 barns/cc.

Radioactivity:

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

Natroxalate Classification

Dana Class:

50.01.11.01 (50)Salts of Organic Acids

(50.01)(Oxalates)

(50.01.11)Dana Group

50.01.11.01 Natroxalate! Na2C2O4 P 2₁/a 2/m

Strunz Class:

10.AB.60 10 - ORGANIC COMPOUNDS

10.A - Salts of Organic Acids

10.AB -Oxalates

10.AB.60 Natroxalate! Na2C2O4 P 2₁/a 2/m

Other Natroxalate Information

References:

PHYS. PROP.(Am.Min.,Vol.82,p432,1997) OPTIC PROP.(Am.Min.,Vol.82,p432,1997)

See Also:

Links to other databases for Natroxalate :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Natroxalate

Na2C2O4
Dana No: 50.01.11.01 Strunz No: 10.AB.60
Locality:

Notes:

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