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Hubeite Mineral Data

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General Hubeite Information

Help on Chemical  Formula: Chemical Formula: Ca2Mn++Fe+++Si4O12(OH)(H2O)2
Help on Composition: Composition: Molecular Weight = 544.27 gm
   Calcium    15.61 %  Ca   21.84 % CaO
   Manganese   8.78 %  Mn   11.34 % MnO
   Aluminum    0.20 %  Al    0.37 % Al2O3
   Iron        9.75 %  Fe   13.94 % Fe2O3
   Silicon    20.64 %  Si   44.16 % SiO2
   Hydrogen    0.93 %  H     8.28 % H2O
   Oxygen     44.09 %  O
             ______        ______ 
             100.00 %       99.93 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Mn2+0.87Ca0.12Fe3+0.95Al0.04Si4O12(OH)�2(H2O)
Help on Environment: Environment: Mildly oxidizing conditions in a calc-manganese silicate skarn. 4-membered silicate rings; structure
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Dayan mine near Huangshi, Hubei Province, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: IMA2000-022

Hubeite Image

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  Hubeite   Inesite

Comments: Brown hubeite aggregates accompanied by prismatic pinkish inesite crystals.
Location: Fengjiashan Mine, Daye, Hubei China. Scale: 5.3 x 3.7 x 1.1 cm.
© Fabre Minerals

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  Hubeite   Inesite

Comments: Translucent, deep root beer brown, platy hueite crystals in fan-like groups to 1mm with delicate pink laths of inesite.
Location: Fengjiashan Mine, Daye Co., Huangshi Prefecture, Hubei Province, China. Scale: Picture Size 5 mm.
© Tom Loomis / Dakota Matrix

Hubeite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7178:1:0.4729
Help on Cell Dimensions: Cell Dimensions: a = 9.96, b = 13.875, c = 6.562, Z = 2; alpha = 133.19°, beta = 101.5°, gamma = 66.27° V = 593.11 Den(Calc)= 3.05
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.072(1)(100), 8.238(0.9)(110), 3.095(0.7)(142), 3.126(0.7)(320), 2.781(0.6)(220), 1.627(0.3)(154,173),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 3 5 2) ( 0 1 1) ( 1 0 1) ( 1 0 0) ( 0 0 1)

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Physical Properties of Hubeite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Dark brown, Light brown.
Help on Density: Density: 3.02
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Habit: Habit: Rosette - Bundled tabular aggregates resembling rose flower petals.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: pale orange brown

Optical Properties of Hubeite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.035 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.032 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2255,KPDmeas= 0.2247,KC= 0.2329
Ncalc = 1.7
Help on Optical Data: Optical Data: Biaxial (-), a=1.667, b=1.679, g=1.69, bire=0.0230

Calculated Properties of Hubeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.99 gm/cc
note: Specific Gravity of Hubeite =3.01 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEHubeite = 7.79 barns/electron
U=PEHubeite x rElectron Density= 23.30 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hubeite is Not Radioactive

Hubeite Classification

Help on  Dana Class: Dana Class: (57)Sorosilicate Insular Si3O10 and Larger Noncyclic Groups
  (57.02)with [Si4O13] groups
  (57.02.03)Akatoreite Group Akatoreite (Mn,Fe)9Al2Si8O24(OH)8 P1 1 Hubeite! Ca2MnFeSi4O12(OH)(H2O)2 P1 1 Cassagnaite! (Ca,Mn)4(Fe,Mn,Al)4(OH)4(V,Mg,Al)2(O,OH)4(Si3O10)(SiO4)2 C mcm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.BJ.60 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BJ -Sorosilicates with Si3O10, Si4O11, etc
09.BJ.60 Hubeite! Ca2MnFeSi4O12(OH)(H2O)2 P1 1

Other Hubeite Information

Help on References: References: NAME( MinRec, Vol 33, p 465) PHYS. PROP.(MinRec, Vol 33, p 465) OPTIC PROP.(MinRec, Vol 33, p 465)
Help on See Also: See Also: Links to other databases for Hubeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 09.BJ.60





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