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Clinozoisite-(Sr) Mineral Data

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General Clinozoisite-(Sr) Information

Help on Chemical  Formula: Chemical Formula: CaSrAl3(Si2O7)(SiO4)O(OH)
Help on Composition: Composition: Molecular Weight = 499.69 gm
   Strontium  12.63 %  Sr   14.93 % SrO
   Calcium    10.27 %  Ca   14.36 % CaO
   Aluminum   13.39 %  Al   25.30 % Al2O3
   Iron        5.03 %  Fe    6.47 % FeO
   Silicon    16.86 %  Si   36.07 % SiO2
   Hydrogen    0.20 %  H     1.80 % H2O
   Oxygen     41.62 %  O
             ______        ______ 
             100.00 %       98.94 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.28Sr0.72Al2.48Fe2+0.45(Si2O7)(SiO4)O(OH)
Help on Environment: Environment: Occurs interstitally with chlorite and diaspore in a boulder of prehenite. (epidote group; structure)
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Itoigawa-Ohmi district, Niigata Prefecture, central Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Clinozoisite-(Sr) + Pronunciation Say CLINOZOISITE-(SR)
Help on Synonym: Synonym: IMA2001-055
  Niigataite - Renamed to Clinozoisite-(Sr) - Recommended nomenclature of epidote-group minerals, Eur. J. Mineral. 2006, 18, 551-567.

Clinozoisite-(Sr) Image

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Comments: Boulder consisting of prehenite, diaspore, chlorite and niigataite. The pale lavender is prehenite/diaspore and the very pale green is chlorite/niigataite..
Location: Itoigawa, river Kazuo, Niigata prefecture, Japan. Scale: Specimen size 19cm x 16 cm.
© American Mineralogist

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Comments: Backscatter electronic image of niigataite (bright) which is partially replacing a chlorite (med gray) grain in a diaspore (dark gray, rod-shaped) and prehenite (light gray) matrix.
Location: Itoigawa, river Kazuo, Niigata prefecture, Japan. Scale: Picture size 5 mm.
© American Mineralogist

Clinozoisite-(Sr) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.5909:1:1.8273
Help on Cell Dimensions: Cell Dimensions: a = 8.89, b = 5.5878, c = 10.211, Z = 2; beta = 115.12° V = 459.26 Den(Calc)= 3.61
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): 2.9(1)(113), 2.79(0.48)(020,211), 2.7(0.26)(013,300),3.22(0.25)(201), 2.6(0.24)(311), 2.11(0.24)(221,223), 5.05(0.23)(102),

Physical Properties of Clinozoisite-(Sr)

Help on Cleavage: Cleavage: Perfect
Help on Color: Color: Pale greenish gray.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.
Help on Hardness: Hardness: 5-5.5 - Apatite-Knife Blade
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Clinozoisite-(Sr)

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1932,KC= 0.1975
Ncalc = 1.71
Help on Optical Data: Optical Data: Biaxial (?), a=1.67, g=1.725, bire=0.0550

Calculated Properties of Clinozoisite-(Sr)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.52 gm/cc
note: Specific Gravity of Clinozoisite-(Sr) =3.61 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEClinozoisite-(Sr) = 17.51 barns/electron
U=PEClinozoisite-(Sr) x rElectron Density= 61.70 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clinozoisite-(Sr) is Not Radioactive

Clinozoisite-(Sr) Classification

Help on  Dana Class: Dana Class: 58.02.01a.09 (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 Clinozoisite-(Sr) Information

Help on References: References: NAME( AmMin, v 89, p 469) PHYS. PROP.(AmMin, v 89, p 469) OPTIC PROP.(AmMin, v 89, p 469)
Help on See Also: See Also: Links to other databases for Clinozoisite-(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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Dana No: 58.02.01a.09 Strunz No: 09.BG.05a





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