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Epidote-(Sr) Mineral Data

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General Epidote-(Sr) Information

Help on Chemical  Formula: Chemical Formula: CaSrAl2Fe+++(Si2O7)(SiO4)O(OH)
Help on Composition: Composition: Molecular Weight = 530.76 gm
   Strontium  16.51 %  Sr   19.52 % SrO
   Calcium     7.55 %  Ca   10.57 % CaO
   Aluminum   10.17 %  Al   19.21 % Al2O3
   Iron       10.52 %  Fe   15.04 % Fe2O3
   Silicon    15.87 %  Si   33.96 % SiO2
   Hydrogen    0.19 %  H     1.70 % H2O
   Oxygen     39.19 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaSrAl2Fe3+(Si2O7)(SiO4)O(OH)
Help on Environment: Environment: Epidote group
Help on IMA Status: IMA Status: Proposed IMA 2006 (Dana # Added)
Help on Locality: Locality: Ananai mine, Ohotoyo town, Kochi Prefecture, Japan Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals, Nomenclature and Classification (CNMNC)
Help on Name Pronunciation: Name Pronunciation: Epidote-(Sr) Say EPIDOTE-(SR)
Help on Synonym: Synonym: IMA2006-055
 

Epidote-(Sr) Image

Click Here for Larger   Image in a New Browser Window Images:
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  Epidote-(Sr)   Tinzenite

Comments: B&W image of a radial aggregate of epidote-(Sr) in tinzenite. (Journal of Mineralogical and Petrological Sciences, v103:400).
Location: Nagakawara and Hohnomori deposits at the Ananai mine, Kochi Prefecture, Japan. Scale: See Image.
© Journal of Mineralogical and Petrological Sciences

Epidote-(Sr) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.5793:1:1.8125
Help on Cell Dimensions: Cell Dimensions: a = 8.925, b = 5.651, c = 10.243, Z = 2; beta = 114.45° V = 470.28 Den(Calc)= 3.75
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.921(1), 2.58(0.49), 2.614(0.42),3.5(0.42), 2.724(0.41), 2.825(0.32), 3.262(0.23), 2.181(0.22),
 

Optical Properties of Epidote-(Sr)

Help on Optical Data: Optical Data: NCalc= 1.8 - from Gladstone-Dale relationship (KC = 0.2141) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Epidote-(Sr)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.63 gm/cc
note: Specific Gravity of Epidote-(Sr) =3.75 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEEpidote-(Sr) = 23.05 barns/electron
U=PEEpidote-(Sr) x rElectron Density= 83.72 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Epidote-(Sr) is Not Radioactive
 

Epidote-(Sr) Classification

Help on  Dana Class: Dana Class: 58.02.01a.11 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups
  (58.02)with cations in [6] and higher coordination; single and double groups (n=1,2)
  (58.02.01a)Epidote group (Clinozoisite subgroup)
 
58.02.01a.01 Clinozoisite! Ca2Al3(SiO4)3(OH)=Ca2AlAl2(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
58.02.01a.02 Epidote! Ca2(Fe,Al)3(SiO4)3(OH)=Ca2(Fe,Al)Al2(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
58.02.01a.03 Epidote-(Pb)! (Ca,Pb,Sr)2(Al,Fe)3(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
58.02.01a.04 Mukhinite Ca2Al2V(SiO4)3(OH) P 21/m 2/m
 
58.02.01a.05 Piemontite Ca2(Al,Mn,Fe)3(SiO4)3(OH)=Ca2(Mn,Fe)Al2(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
58.02.01a.06 Piemontite-(Sr)! (Ca,Mn)(Sr,Ca)Mn(Al,Mn,Fe)2(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
58.02.01a.07 Manganipiemontite-(Sr)! CaSr(Mn,Fe)2Al[Si3O12](OH) P 21/m 2/m
 
58.02.01a.08 Gatelite-(Ce)! (Ca,Ce,La,Nd)4(Al,Mg,Fe)4[Si2O7][SiO4]3(O,F,OH)3 P 21/a 2/m
 
58.02.01a.09 Clinozoisite-(Sr)! CaSrAl3(Si2O7)(SiO4)O(OH) P 21/m 2/m
 
58.02.01a.10 Uedaite-(Ce)! MnCeAl2Fe(Si2O7)(SiO4)O(OH) P 21/m 2/m
 
58.02.01a.11 Epidote-(Sr)! CaSrAl2Fe(Si2O7)(SiO4)O(OH) P 21/m 2/m
Help on  Strunz Class: Strunz Class: 09.BG.05a 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BG -Sorosilicates with mixed SiO4 and Si2O7 groups;
 
09.BG.05a Clinozoisite Ca2Al3(SiO4)3(OH)=Ca2AlAl2(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
09.BG.05a Epidote Ca2(Fe,Al)3(SiO4)3(OH)=Ca2(Fe,Al)Al2(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
09.BG.05a Epidote-(Pb) (Ca,Pb,Sr)2(Al,Fe)3(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
09.BG.05a Mukhinite Ca2Al2V(SiO4)3(OH) P 21/m 2/m
 
09.BG.05a Piemontite Ca2(Al,Mn,Fe)3(SiO4)3(OH)=Ca2(Mn,Fe)Al2(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
09.BG.05a Piemontite-(Sr)! (Ca,Mn)(Sr,Ca)Mn(Al,Mn,Fe)2(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
09.BG.05a Manganipiemontite-(Sr)! CaSr(Mn,Fe)2Al[Si3O12](OH) P 21/m 2/m
 
09.BG.05a Clinozoisite-(Sr)! CaSrAl3(Si2O7)(SiO4)O(OH) P 21/m 2/m
 
09.BG.05a Epidote-(Sr)! CaSrAl2Fe(Si2O7)(SiO4)O(OH) P 21/m 2/m
 

Other Epidote-(Sr) Information

Help on See Also: See Also: Links to other databases for Epidote-(Sr) :
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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Print or Cut-and-Paste your Epidote-(Sr) Specimen Label here :

Epidote-(Sr)

CaSrAl2Fe+++(Si2O7)(SiO4)O(OH)
Dana No: 58.02.01a.11 Strunz No: 09.BG.05a
Locality:

 

Notes:

 

 
   
 


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