Mengxianminite Mineral Data

Mengxianminite Mineral Data

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General Mengxianminite Information

Chemical Formula:

(Ca,Na)3(Fe++,Mn++)2Mg2(Sn++++,Zn)5Al8O29

Composition:

Molecular Weight = 1,474.00 gm

Sodium 1.17 % Na 1.58 % Na₂O

Calcium 6.12 % Ca 8.56 % CaO

Magnesium 3.30 % Mg 5.47 % MgO

Manganese 1.86 % Mn 2.41 % MnO

Aluminum 14.64 % Al 27.67 % Al₂O₃

Zinc 5.55 % Zn 6.90 % ZnO

Iron 5.68 % Fe 7.31 % FeO

Tin 30.20 % Sn 38.34 % SnO₂

Oxygen 31.48 % O

______ ______

100.00 % 98.24 % = TOTAL OXIDE

Empirical Formula:

Ca_2.25Na_0.75Fe²⁺_1.5Mn²⁺_0.5Mg₂Sn_3.75Zn_1.25Al₈O₂₉

Environment:

Inadequately described species.

IMA Status:

Not Approved IMA

Locality:

China, location not mentioned. Link to MinDat.org Location Data.

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Mengxianminite Crystallography

Crystal System:

OrthorhombicSpace Group: Unk

Physical Properties of Mengxianminite

Color:

Brownish green.

Density:

3.85

Hardness:

6 - Orthoclase

Optical Properties of Mengxianminite

Optical Data:

NCalc= 1.67 - from Gladstone-Dale relationship (KC = 0.1734) where Ncalc=Dmeas*KC+1

Calculated Properties of Mengxianminite

Electron Density:

r_electron=3.60 gm/cc
note: r_{Mengxianminite}=3.85 gm/cc.

Fermion Index

Fermion Index = 0.0572
Boson Index = 0.9428

Photoelectric:

PE_{Mengxianminite}= 95.30 barns/electron
U=PE_{Mengxianminite} x r_electron= 343.38 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Mengxianminite is Not Radioactive

Mengxianminite Classification

Dana Class:

4.0.0.0 (4)Oxide Minerals

(4.0)Without Dana Classification Numbers

(Oxide)

Strunz Class:

IV/C.07-60 IV - Oxides

IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)

IV/C.07 - Högbomite - Mengxianminite series

IV/C.07-10* Magnesiohogbomite-2N2S (Al,Fe,Fe,Mg,Ti,Zn)11O15(OH) P 6₃mc 6mm

IV/C.07-10** Magnesiohogbomite-2N3S (Mg,Fe)1.4Ti0.3Al4O8 P 6₃mc 6mm

IV/C.07-10 Magnesiohogbomite-6N6S (Mg,Fe)1.4Ti0.3Al4O8 R 3m 3 2/m

IV/C.07-15 Zincohogbomite-2N2S! (Zn,Fe)(2-2x)(Ti)xAl4O8 P 6₃mc 6mm

IV/C.07-17 Ferrohogbomite-2N2S! (Fe,Zn,Mg,Al)6Al14(Ti,Fe)2O30(OH)2 P 6₃mc 6mm

IV/C.07-20 Freudenbergite Na2Fe2Ti6O16 C 2/m 2/m

IV/C.07-30 Kamiokite Fe2Mo3O8 P 6₃mc 6mm

IV/C.07-40 Nolanite (V,Fe,Fe,Ti)10O14(OH)2 P 6₃mc 6mm

IV/C.07-42 Rinmanite! (Zn,Mn)2Sb2Mg2Fe4O14(OH)2 P 6₃mc 6mm

IV/C.07-45 Magnesionigerite-2N1S (Mg,Zn,Fe,Al)4(Sn,Fe)2Al10O22(OH)2 P 3m 3 2/m

IV/C.07-45* Magnesionigerite-6N6S (Mg,Zn,Fe,Al)4(Sn,Fe)2Al10O22(OH)2 Unk Trig

IV/C.07-50 Ferronigerite-2N1S (Zn,Mg,Fe)(Sn,Zn)2(Al,Fe)12O22(OH)2 P 3m or P 3m1 3 2/m

IV/C.07-50* Ferronigerite-6N6S (Fe,Zn)4Sn2(Al,Fe)15O30(OH)2 R 3m 3 2/m

IV/C.07-60 Mengxianminite (Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29 Unk Ortho

Other Mengxianminite Information

See Also:

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

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Mengxianminite

(Ca,Na)3(Fe++,Mn++)2Mg2(Sn++++,Zn)5Al8O29
Dana No: Unknown Strunz No: IV/C.07-60
Locality:

Notes: