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Inesite Mineral Data

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General Inesite Information

Help on Chemical  Formula: Chemical Formula: Ca2Mn7Si10O28(OH)2•5(H2O)
Help on Composition: Composition: Molecular Weight = 1,317.65 gm
   Calcium     6.08 %  Ca    8.51 % CaO
   Manganese  29.19 %  Mn   37.69 % MnO
   Silicon    21.31 %  Si   45.60 % SiO2
   Hydrogen    0.92 %  H     8.20 % H2O
   Oxygen     42.50 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Mn2+7Si10O28(OH)2•5(H2O)
Help on Environment: Environment: Hydrothermally altered Mn-bearing rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1887
Help on Locality: Locality: Banska Stiavnica, Czechoslovakia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek ines - "flesh fibers."
Help on Name Pronunciation: Name Pronunciation: Inesite Say INESITE
Help on Synonym: Synonym: Agnolite
  ICSD 100627
  PDF 33-293

Inesite Image

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Comments: Bladed crystals of orangish pink Inesite.
Location: N'Chwaning Mine, Kalahari, South Africa. Scale: 14 x 7.5 cm.
© John Veevaert

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  Ruizite   Inesite

Comments: 1- 3 mm crystal spray of red orange ruizite in an exposed vug in pink inesite.
Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Picture size 1 cm.
© John Veevaert

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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

Inesite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9612:1:1.295
Help on Cell Dimensions: Cell Dimensions: a = 8.889, b = 9.247, c = 11.975, Z = 1; alpha = 88.15°, beta = 132.07°, gamma = 96.64° V = 725.40 Den(Calc)= 3.02
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): 9.16(1), 2.84(0.8), 2.92(0.8),

Physical Properties of Inesite

Help on Cleavage: Cleavage: {010} Perfect, {100} Good
Help on Color: Color: Brown, Brown, Pink, Orange.
Help on Density: Density: 3.029 - 3.1, Average = 3.06
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Massive - Fibrous - Distinctly fibrous fine-grained forms.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Inesite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.044 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.03 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2085,KPDmeas= 0.2055,KC= 0.2149
Ncalc = 1.65 - 1.67
Help on Optical Data: Optical Data: Biaxial (-), a=1.609, b=1.636, g=1.644, bire=0.0350, 2V(Calc)=56, 2V(Meas)=60.

Calculated Properties of Inesite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Inesite =3.02 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEInesite = 8.95 barns/electron
U=PEInesite x rElectron Density= 26.55 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Inesite is Not Radioactive

Inesite Classification

Help on  Dana Class: Dana Class: (66)Inosilicate Double-Width Unbranched Chains, W=2
  (66.03)with chains P>2
  (66.03.03)P=5 Inesite Ca2Mn7Si10O28(OH)2•5(H2O) P1 1
Help on  Strunz Class: Strunz Class: 09.DL.05 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DL -Inosilicates with 5-periodic double chains, Si10O28
09.DL.05 Inesite Ca2Mn7Si10O28(OH)2•5(H2O) P1 1

Other Inesite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Inesite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 09.DL.05





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