Mengxianminite Mineral Data

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 - Published 1986

Locality:

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

Name Origin:

Presumably named for the locality.

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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:

Bulk Density (Electron Density)=3.60 gm/cc
note: Specific Gravity of Mengxianminite =3.85 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mengxianminite is Not Radioactive

Mengxianminite Classification

Dana Class:

04.00.00.00 (04)Oxide Minerals

(04.00)Without Dana Classification Numbers

(04.00.00)Oxide

04.00.00.00 Ashanite? (Nb,Ta,U,Fe,Mn)4O8 Pcan 2/m 2/m 2/m

04.00.00.00 Chubutite* Pb7O6Cl2 Unk Ortho

04.00.00.00 Clinobirnessite* Na4Mn14O27•9(H2O) Mono

04.00.00.00 Donathite? (Fe,Mg)(Cr,Fe)2O4 P 4/nnm 4/m 2/m 2/m

04.00.00.00 IMA2008-022 UO2(OH)2 pseudo-orthorhombic Mono

04.00.00.00 Krasnogorite* WO3 Pmnb 2/m 2/m 2/m

04.00.00.00 Mengxianminite* (Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29 Unk Ortho

04.00.00.00 Romanite* (Fe,U,Pb)2(Ti,Fe)O4 Trig ? Trig

04.00.00.00 Tantalowodginite* (Mn2,[])4Ta4Ta8O32 C 2/c 2/m

04.00.00.00 Ungursaite* NaCa5(Ta,Nb)24O65(OH) P 6₃/m,P 6₃ Hex

04.00.00.00 Wolframoixiolite* (Fe,Mn,Nb)(Nb,W,Ta)O4 Pc m

Strunz Class:

04.CC.60 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.C - Metal:Oxygen = 2:3, 3:5, and Similar

04.CC -With large and medium-sized cations

04.CC.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 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Mengxianminite

(Ca,Na)3(Fe++,Mn++)2Mg2(Sn++++,Zn)5Al8O29
Dana No: 04.00.00.00 Strunz No: 04.CC.60
Locality:

Notes: