Harstigite Mineral Data

Harstigite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About


General Harstigite Information

Help on Chemical Formula: Chemical Formula: Ca6MnBe4(SiO4)2(Si2O7)2(OH)2
Help on Composition: Composition: Molecular Weight = 885.97 gm
   Calcium    27.14 %  Ca   37.98 % CaO
   Manganese   6.20 %  Mn    8.01 % MnO
   Beryllium   4.07 %  Be   11.29 % BeO
   Silicon    19.02 %  Si   40.69 % SiO2
   Hydrogen    0.23 %  H     2.03 % H2O
   Oxygen     43.34 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca6Mn2+Be4(SiO4)2(Si2O7)2(OH)2
Help on Environment: Environment: Occurs with garnet and rhodonite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1886
Help on Locality: Locality: Harstig mine, Pajsberg, near Persber, Vermland, Switzerland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Harstigite + Pronunciation Say HARSTIGITE
Help on Synonym: Synonym: ICSD 64790
  PDF 20-200
 

Search for Harstigite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.
  

Harstigite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0205:1:0.7107
Help on Cell Dimensions: Cell Dimensions: a = 13.9, b = 13.62, c = 9.68, Z = 4; V = 1,832.60 Den(Calc)= 3.21
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pcmn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.695(1), 2.788(0.5), 2.817(0.5),
Click Here for Large Harstigite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Hesse K F , Stumpel G , Zeitschrift fur Kristallographie , 177 (1986) p.143-148, Crystal structure of harstigite, MnCa6Be4[SiO4]2[Si2O7]2(OH)2, Locality: Harstigen mine, Sweden

 

Physical Properties of Harstigite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, White.
Help on Density: Density: 3.16
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Harstigite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.005 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.01 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2119,KPDmeas= 0.2153,KC= 0.2142
Ncalc = 1.68 - 1.69
Help on Optical Data: Optical Data: Biaxial (+), a=1.678, b=1.68, g=1.683, bire=0.0050, 2V(Calc)=80, 2V(Meas)=52.
 

Calculated Properties of Harstigite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.13 gm/cc
note: Specific Gravity of Harstigite =3.16 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEHarstigite = 5.67 barns/electron
U=PEHarstigite x rElectron Density= 17.75 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Harstigite is Not Radioactive
 

Harstigite Classification
Help on Dana Class: Dana Class: 57.01.01.02 (57)Sorosilicate Insular Si3O10 and Larger Noncyclic Groups
  (57.01)with [Si3O10] groups
  (57.01.01)Aminoffite and related species
 
57.01.01.01 Aminoffite Ca3Be2Si3O10(OH)2 I 4/mmm 4/m 2/m 2/m
 
57.01.01.02 Harstigite Ca6MnBe4(SiO4)2(Si2O7)2(OH)2 Pcmn 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 09.BF.05 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BF -Sorosilicates with mixed SiO4 and Si2O7 groups;
 
09.BF.05 Harstigite Ca6MnBe4(SiO4)2(Si2O7)2(OH)2 Pcmn 2/m 2/m 2/m
 

Other Harstigite Information
Help on References: References: NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Harstigite :
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
15 - WWW-MINCRYST

Search for Harstigite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Harstigite :

A Bijoux Google Search for Harstigite
Adam's Minerals Google Search for Harstigite
Cape Minerals Google Search for Harstigite
Dakota Matrix Minerals Google Search for Harstigite
Excalibur Mineral Corp. Google Search for Harstigite
Exceptional Minerals Google Search for Harstigite
John Betts Fine Minerals Search for Harstigite
McDougall Minerals Google Search for Harstigite
Mineral News Website Link
Rock and Mineral Shows Google Search for Harstigite
Weinrich Minerals, Inc. Google Search for Harstigite

Ask about Harstigite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Harstigite

Ca6MnBe4(SiO4)2(Si2O7)2(OH)2
Dana No: 57.01.01.02 Strunz No: 09.BF.05
Locality:

 

Notes: