Odanielite Mineral Data

Odanielite Mineral Data +

General Odanielite Information

Chemical Formula:

Na(Zn,Mg)3H2(AsO4)3

Composition:

Molecular Weight = 607.12 gm

Sodium 3.79 % Na 5.10 % Na₂O

Magnesium 3.00 % Mg 4.98 % MgO

Zinc 24.23 % Zn 30.16 % ZnO

Arsenic 37.02 % As 56.79 % As₂O₅

Hydrogen 0.33 % H 2.97 % H₂O

Oxygen 31.62 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaZn_2.25Mg_0.75H₂(AsO₄)₃

IMA Status:

Approved IMA 1980

Locality:

Link to MinDat.org Location Data.

Synonym:

O'danielite

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Odanielite Crystallography

Axial Ratios:

a:b:c =0.9734:1:0.5458

Cell Dimensions:

a = 12.11, b = 12.44, c = 6.79, Z = 4; beta = 112.87° V = 942.49 Den(Calc)= 4.28

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): 3.26(1), 6.22(1), 2.78(0.8),

Physical Properties of Odanielite

Color:

Violet.

Hardness:

3 - Calcite

Optical Properties of Odanielite

Gladstone-Dale:

CI calc= -0.046 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1773,KC= 0.1694

Optical Data:

Biaxial (+), a=1.745, b=1.753, g=1.778, bire=0.0330, 2V(Calc)=60, 2V(Meas)=60.

Calculated Properties of Odanielite

Electron Density:

r_electron=4.01 gm/cc
note: r_Odanielite=4.28 gm/cc.

Fermion Index

Fermion Index = 0.01309
Boson Index = 0.98691

Photoelectric:

PE_Odanielite= 38.07 barns/electron
U=PE_Odanielite x r_electron= 152.70 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Odanielite is Not Radioactive

Odanielite Classification

Dana Class:

38.2.3.7 (38)Anhydrous Phosphates, etc

(38.2)(A+ B++)5 (XO4)3

(38.2.3)Alluaudite-Wyllieite Group (Alluaudite Subgroup)

38.2.3.1 Ferrohagendorfite* (Na,Ca)2Fe(Fe,Fe)2(PO4)3 I 2₁/a 2/m

38.2.3.2 Hagendorfite NaCaMn(Fe,Fe,Mg)2(PO4)3 I 2₁/a 2/m

38.2.3.3 Varulite NaCaMn(Mn,Fe,Fe)2(PO4)3 C 2/c 2/m

38.2.3.4 Maghagendorfite NaMgMn(Fe,Fe)2(PO4)3 I 2₁/a 2/m

38.2.3.5 Ferroalluaudite NaCaFe(Fe,Mn,Fe,Mg)2(PO4)3 C 2/a 2/m

38.2.3.6 Alluaudite NaCaFe(Mn,Fe,Fe,Mg)2(PO4)3 C 2/c 2/m

38.2.3.7 Odanielite Na(Zn,Mg)3H2(AsO4)3 C 2/c 2/m

38.2.3.8 Johillerite Na(Mg,Zn)3Cu(AsO4)3 I2/c 2/m

38.2.3.9 Nickenichite Na0,8Ca0,4(Mg,Fe,Al)3Cu0,4(AsO4)3 C 2/c 2/m

38.2.3.10 Yazganite! NaFe2(Mg,Mn)(AsO4)3·H2O C 2/c 2/m

Strunz Class:

VII/A.07-20 VII - Phosphates, Arsenates and Vanadates

VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions, cations of medium and big size: Mg, Mn,Fe, Cu, Zn, and Ca, Na

VII/A.07 - Johillerite - Nickenichite series

VII/A.07-10 Johillerite Na(Mg,Zn)3Cu(AsO4)3 I2/c 2/m

VII/A.07-15 Bradaczekite! NaCu4(AsO4)3 C 2/c 2/m

VII/A.07-20 Odanielite Na(Zn,Mg)3H2(AsO4)3 C 2/c 2/m

VII/A.07-30 Nickenichite Na0,8Ca0,4(Mg,Fe,Al)3Cu0,4(AsO4)3 C 2/c 2/m

Other Odanielite Information

References:

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

See Also:

Links to other databases for Odanielite :
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 - WWW-MINCRYST

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Odanielite

Na(Zn,Mg)3H2(AsO4)3
Dana No: 38.2.3.7 Strunz No: VII/A.07-20
Locality:

Notes: