Glushinskite Mineral Data

Glushinskite Mineral Data +

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General Glushinskite Information

Chemical Formula:

Mg(C2O4)·2(H2O)

Composition:

Molecular Weight = 148.36 gm

Magnesium 16.38 % Mg 27.17 % MgO

Hydrogen 2.72 % H 24.29 % H₂O

Carbon 16.19 % C 48.55 % C₂O₃

Oxygen 64.71 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mg(C₂O₄)·2(H₂O)

IMA Status:

Approved IMA 1987

Locality:

Link to MinDat.org Location Data.

Synonym:

Magnesium Oxalate

Glushinskite Image

Images:

Glushinskite

Comments: White coatings of glushinskite on dirty, tan gypsum.
Location: San Simon, Cochise County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Glushinskite

Comments: SEM photo of two large euhedral glushinskite crystals partially embedded in the dried, rotten saguaro matrix. (AmMin, 88:1883).
Location: Crystals associated with the remains of a saguaro, Carnegiea gigantea from south and west central Arizona. Scale: Scale bar 150 µ-m.
© American Mineralogist

Glushinskite Crystallography

Axial Ratios:

a:b:c =2.3446:1:1.8468

Cell Dimensions:

a = 12.675, b = 5.406, c = 9.984, Z = 4; beta = 129.45° V = 528.26 Den(Calc)= 1.87

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 4.89(1), 3.179(0.7), 2.039(0.6),

Physical Properties of Glushinskite

Color:

White, White, Colorless.

Density:

1.85

Streak:

white

Optical Properties of Glushinskite

Gladstone-Dale:

CI meas= -0.961 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.94 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2656,KPDmeas= 0.2685,KC= 0.1369

Optical Data:

Biaxial (-), a=1.365, b=1.53, g=1.595, bire=0.2300

Calculated Properties of Glushinskite

Electron Density:

r_electron=1.92 gm/cc
note: r_Glushinskite=1.87 gm/cc.

Fermion Index

Fermion Index = 0.01847
Boson Index = 0.98153

Photoelectric:

PE_Glushinskite= 0.61 barns/electron
U=PE_Glushinskite x r_electron= 1.17 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Glushinskite is Not Radioactive

Glushinskite Classification

Dana Class:

50.1.3.2 (50)Salts of Organic Acids

(50.1)(Oxalates)

(50.1.3)Dana Group

50.1.3.1 Humboldtine Fe(C2O4)·2(H2O) I2/a 2/m

50.1.3.2 Glushinskite Mg(C2O4)·2(H2O) C 2/c 2/m

50.1.3.3 Lindbergite! Mn(C2O4)·2(H2O) C 2/c 2/m

Strunz Class:

IX/A.01-40 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 Glushinskite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Glushinskite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Glushinskite

Mg(C2O4)·2(H2O)
Dana No: 50.1.3.2 Strunz No: IX/A.01-40
Locality:

Notes: