Mongshanite Mineral Data

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General Mongshanite Information

Chemical Formula:

(Mg,Cr,Fe++)2(Ti,Zr)5O12

Composition:

Molecular Weight = 595.20 gm

Magnesium 4.90 % Mg 8.13 % MgO

Zirconium 30.65 % Zr 41.41 % ZrO₂

Titanium 24.13 % Ti 40.26 % TiO₂

Chromium 5.24 % Cr 6.85 % CrO

Iron 2.81 % Fe 3.62 % FeO

Oxygen 32.26 % O

______ ______

100.00 % 100.27 % = TOTAL OXIDE

Empirical Formula:

Mg_1.2Cr_0.6Fe²⁺_0.3Ti₃Zr₂O₁₂

Environment:

A doubtful species. Physical properties similar to ilmanite and found as inclusions in ilmentite.

IMA Status:

Not Approved IMA 1982

Locality:

Yimenguan area (?), Shandong, China. Link to MinDat.org Location Data.

Name Origin:

Named for the locality ?

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Mongshanite Crystallography

Crystal System:

HexagonalSpace Group: Unk

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

By Intensity(I/I_o): 2.89(1), 1.45(0.7), 2.26(0.7),

Physical Properties of Mongshanite

Color:

Black.

Diaphaneity:

Opaque

Hardness:

5-6 - Between Apatite and Orthoclase

Luster:

Metallic

Optical Properties of Mongshanite

Optical Data:

Calculated Properties of Mongshanite

Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Photoelectric:

PE_Mongshanite= 48.37 barns/electron
U=PE_Mongshanite x rElectron Density= . barns/cc.

Radioactivity:

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

Mongshanite Classification

Dana Class:

07.11.11.01 (07)Multiple Oxides

(07.11)as titano-oxides with [4] and [6] substitutions

(07.11.11)Dana Group

07.11.11.01 Mongshanite* (Mg,Cr,Fe)2(Ti,Zr)5O12 Unk Hex

07.11.11.02 Allendeite! Sc4Zr3O12 R 3 3

Strunz Class:

04.CB.15 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.CB -With medium-sized cations

04.CB.15 Armalcolite (Mg,Fe)Ti2O5 Bbmm 2/m 2/m 2/m

04.CB.15 Mongshanite* (Mg,Cr,Fe)2(Ti,Zr)5O12 Unk Hex

04.CB.15 Pseudobrookite (Fe,Fe)2(Ti,Fe)O5 Bbmm 2/m 2/m 2/m

Other Mongshanite Information

References:

NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.73,p441,1988)

See Also:

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

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

Mongshanite

(Mg,Cr,Fe++)2(Ti,Zr)5O12
Dana No: 07.11.11.01 Strunz No: 04.CB.15
Locality:

Notes: