Natroxalate Mineral Data

Natroxalate Mineral Data +

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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).

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 - PrismaticH-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

Diaphaniety:

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

Optical Data:

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

Calculated Properties of Natroxalate

Electron Density:

r_electron=2.31 gm/cc
note: r_Natroxalate=2.35 gm/cc.

Fermion Index

Fermion Index = 0.0022
Boson Index = 0.9978

Photoelectric:

PE_Natroxalate= 0.71 barns/electron
U=PE_Natroxalate x r_electron= 1.65 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Natroxalate is Not Radioactive

Natroxalate Classification

Dana Class:

50.1.11.1 (50)Salts of Organic Acids

(50.1)(Oxalates)

(50.1.11)Dana Group

50.1.11.1 Natroxalate ! Na2C2O4 P 2₁/a 2/m

Strunz Class:

IX/A.01-05 IX - Organic compunds

IX/A - Oxalates. Salts from organic acids. [C2O4]2- arranged after increasing cation size

IX/A.01 - Whewellite - Wheatleyite series

IX/A.01-05 Natroxalate Na2C2O4 P 2₁/a 2/m

IX/A.01-10 Whewellite Ca(C2O4)·(H2O) P 2₁/n 2/m

IX/A.01-20 Weddellite Ca(C2O4)·2(H2O) I 4/m 4/m

IX/A.01-25 Caoxite! Ca(C2O4)·3(H2O) P1 1

IX/A.01-28 Novgorodovaite! Ca2(C2O4)Cl2·2(H2O) I2/m 2/m

IX/A.01-30 Oxammite (NH4)2(C2O4)·(H2O) P 2₁2₁2 2 2 2

IX/A.01-40 Glushinskite Mg(C2O4)·2(H2O) C 2/c 2/m

IX/A.01-50 Humboldtine Fe(C2O4)·2(H2O) I2/a 2/m

IX/A.01-55 Lindbergite! Mn(C2O4)·2(H2O) C 2/c 2/m

IX/A.01-60 Minguzzite K3Fe(C2O4)3·3(H2O) P 2₁/c 2/m

IX/A.01-70 Zhemchuzhnikovite NaMg(Al,Fe)(C2O4)3·8(H2O) Unk Trig

IX/A.01-80 Stepanovite NaMgFe(C2O4)3·8-9(H2O) Unk Trig

IX/A.01-90 Moolooite Cu(C2O4)·n(H2O)(n<1) Unk Ortho

IX/A.01-100 Wheatleyite Na2Cu(C2O4)2·2(H2O) P1 1

IX/A.01-110 Coskrenite-(Ce)! (Ce,Nd,La)2(SO4)2(C2O4)·8(H2O) C 2/c 2/m

IX/A.01-120 Levinsonite-(Y)! (Y,Nd,La)Al(SO4)2(C2O4)·12(H2O) P 2/n 2/m

IX/A.01-130 Zugshunstite-(Ce)! (Ce,Nd,La)Al(SO4)2(C2O4)·8(H2O) C 2/c 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 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

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

Natroxalate

Na2C2O4
Dana No: 50.1.11.1 Strunz No: IX/A.01-05
Locality:

Notes: