Mineralogy Database

Jianshuiite Mineral Data

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General Jianshuiite Information

Help on Chemical  Formula: Chemical Formula: (Mg,Mn++)Mn++++3O7•3(H2O)
Help on Composition: Composition: Molecular Weight = 366.99 gm
   Calcium     1.09 %  Ca    1.53 % CaO
   Magnesium   3.31 %  Mg    5.49 % MgO
   Manganese  50.90 %  Mn    7.73 % MnO / 71.07 % MnO2
   Hydrogen    1.54 %  H    13.75 % H2O
   Oxygen     43.16 %  O
             ______        ______ 
             100.00 %       99.56 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg0.5Mn2+0.4Ca0.1Mn4+3O7.1•2.8(H2O)
Help on Environment: Environment: Hypogene mineral in manganese ore.
Help on IMA Status: IMA Status: Approved IMA 1992
Help on Locality: Locality: Lu Village, Juanshui County, Yunnan Province, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Jianshuiite + Pronunciation Say JIANSHUIITE
Help on Synonym: Synonym: IMA1990-019

Jianshuiite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.76127
Help on Cell Dimensions: Cell Dimensions: a = 7.54, c = 20.82, Z = 6; V = 1,025.07 Den(Calc)= 3.57
Help on Crystal System: Crystal System: Trigonal Space Group: R 3 or R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.965(1), 2.23(0.23), 3.483(0.11),

Physical Properties of Jianshuiite

Help on Color: Color: Brown, Brownish black.
Help on Density: Density: 3.5 - 3.6, Average = 3.55
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 1.5-2 - Talc-Gypsum
Help on Luster: Luster: Metallic
Help on Streak: Streak: brown

Optical Properties of Jianshuiite

Help on Optical Data: 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

Calculated Properties of Jianshuiite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.46 gm/cc
note: Specific Gravity of Jianshuiite =3.57 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0035356351
Boson Index = 0.9964643649
Help on Photoelectric: Photoelectric: PEJianshuiite = 13.28 barns/electron
U=PEJianshuiite x rElectron Density= 45.94 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Jianshuiite is Not Radioactive

Jianshuiite Classification

Help on  Dana Class: Dana Class: (07)Multiple Oxides
  (07.08)where A B (O)2�x(H2O)
  (07.08.02)Chalcophanite Group Chalcophanite (Zn,Fe,Mn)Mn3O7•3(H2O) R 3 3 Aurorite (Mn,Ag,Ca)Mn3O7•3(H2O) P1 1 Jianshuiite (Mg,Mn)Mn3O7•3(H2O) R 3 or R 3 Trig Ernienickelite NiMn3O7•3(H2O) R 3 or R 3 Trig
Help on  Strunz Class: Strunz Class: 04.FL.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.F - Hydroxides (without V or U)
  04.FL -Hydroxides with H2O � (OH); sheets of edge-sharing octahedra
04.FL.20 Aurorite (Mn,Ag,Ca)Mn3O7•3(H2O) P1 1
04.FL.20 Chalcophanite (Zn,Fe,Mn)Mn3O7•3(H2O) R 3 3
04.FL.20 Ernienickelite NiMn3O7•3(H2O) R 3 or R 3 Trig
04.FL.20 Jianshuiite (Mg,Mn)Mn3O7•3(H2O) R 3 or R 3 Trig

Other Jianshuiite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3)
Help on See Also: 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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Dana No: Strunz No: 04.FL.20





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