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Jianshuiite Mineral Data
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General Jianshuiite Information
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 Chemical Formula: |
(Mg,Mn++)Mn++++3O7•3(H2O) |
| Composition: |
Molecular Weight = 366.99 gm |
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Calcium 1.09 % Ca 1.53 % CaO |
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Magnesium 3.31 % Mg 5.49 % MgO |
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Manganese 50.90 % Mn 7.73 % MnO / 71.07 % MnO2 |
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Hydrogen 1.54 % H 13.75 % H2O |
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Oxygen 43.16 % O |
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______ ______ |
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100.00 % 99.56 % = TOTAL OXIDE |
| Empirical Formula: |
Mg0.5Mn2+0.4Ca0.1Mn4+3O7.1•2.8(H2O) |
| Environment: |
Hypogene mineral in manganese ore. |
| IMA Status: |
Approved IMA 1992 |
| Locality: |
Lu Village, Juanshui County, Yunnan Province, China. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Jianshuiite + Pronunciation  |
| Synonym: |
IMA1990-019 |
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Jianshuiite Crystallography
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| Axial Ratios: |
a:c = 1:2.76127 |
| Cell Dimensions: |
a = 7.54, c = 20.82, Z = 6; V = 1,025.07 Den(Calc)= 3.57 |
| Crystal System: |
Trigonal Space Group: R 3 or R 3 |
| X Ray Diffraction: |
By Intensity(I/Io): 6.965(1), 2.23(0.23), 3.483(0.11), |
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Physical Properties of Jianshuiite
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| Color: |
Brown, Brownish black. |
| Density: |
3.5 - 3.6, Average = 3.55 |
| Diaphaneity: |
Opaque |
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
| Hardness: |
1.5-2 - Talc-Gypsum |
| Luster: |
Metallic |
| Streak: |
brown |
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Optical Properties of Jianshuiite
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| Optical Data: |
NCalc= 2.27 - from Gladstone-Dale relationship (KC = 0.3562) where Ncalc=Dcalc*KC+1
NCalc= 2.26 - from Gladstone-Dale relationship (KC = 0.3562) where Ncalc=Dmeas*KC+1
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Calculated Properties of Jianshuiite
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| Electron Density: |
Bulk Density (Electron Density)=3.46 gm/cc
note: Specific Gravity of Jianshuiite =3.57 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0035356351
Boson Index = 0.9964643649 |
| Photoelectric: |
PEJianshuiite = 13.28 barns/electron
U=PEJianshuiite x rElectron Density= 45.94 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Jianshuiite is Not Radioactive |
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Jianshuiite Classification
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| Dana Class: |
07.08.02.03 (07)Multiple Oxides |
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(07.08)where A B (O)2�x(H2O) |
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(07.08.02)Chalcophanite Group |
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07.08.02.01 Chalcophanite (Zn,Fe,Mn)Mn3O7•3(H2O) R 3 3 |
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07.08.02.02 Aurorite (Mn,Ag,Ca)Mn3O7•3(H2O) P1 1 |
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07.08.02.03 Jianshuiite (Mg,Mn)Mn3O7•3(H2O) R 3 or R 3 Trig |
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07.08.02.04 Ernienickelite NiMn3O7•3(H2O) R 3 or R 3 Trig |
| Strunz Class: |
04.FL.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FL -Hydroxides with H2O � (OH); sheets of edge-sharing octahedra |
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04.FL.20 Aurorite (Mn,Ag,Ca)Mn3O7•3(H2O) P1 1 |
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04.FL.20 Chalcophanite (Zn,Fe,Mn)Mn3O7•3(H2O) R 3 3 |
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04.FL.20 Ernienickelite NiMn3O7•3(H2O) R 3 or R 3 Trig |
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04.FL.20 Jianshuiite (Mg,Mn)Mn3O7•3(H2O) R 3 or R 3 Trig |
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Other Jianshuiite Information
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| References: |
NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3) |
| See Also: |
Links to other databases for Jianshuiite :
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 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Print or Cut-and-Paste your Jianshuiite Specimen Label here :
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Jianshuiite
(Mg,Mn++)Mn++++3O7•3(H2O)
Dana No: 07.08.02.03 Strunz No: 04.FL.20
Locality:
Notes:
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