Natroxalate Mineral Data

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).

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

Search for Natroxalate using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Natroxalate :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Natroxalate Mineral Data :

Ask about Natroxalate here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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: