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Sodic-ferripedrizite Mineral Data

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General Sodic-ferripedrizite Information

Help on Chemical  Formula: Chemical Formula: Na(LiNa)(Fe+++2Mg2Li)Si8O22(OH,F)2
Help on Composition: Composition: Molecular Weight = 811.31 gm
   Potassium   0.14 %  K     0.17 % K2O
   Sodium      3.63 %  Na    4.89 % Na2O
   Lithium     1.90 %  Li    4.09 % Li2O
   Calcium     0.40 %  Ca    0.55 % CaO
   Magnesium   5.24 %  Mg    8.69 % MgO
   Titanium    0.65 %  Ti    1.08 % TiO2
   Manganese   0.47 %  Mn    0.61 % MnO
   Aluminum    0.70 %  Al    1.32 % Al2O3
   Zinc        0.08 %  Zn    0.10 % ZnO
   Iron       11.36 %  Fe   16.24 % Fe2O3
   Silicon    27.69 %  Si   59.25 % SiO2
   Hydrogen    0.17 %  H     1.50 % H2O
   Oxygen     46.05 %  O
   Fluorine    1.52 %  F     1.52 % F
                -   %   F    -0.64 % -O=F2    
             ______        ______ 
             100.00 %       99.38 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.7K0.03Li1.34Na0.58Ca0.08Mg1.75Fe3+1.65Li0.88Al0.21Ti0.11Mn2+0.07Zn0.01Si8O22 (OH)1.35F0.65
Help on Environment: Environment: In hydrothermal episyenites formed after cordierite-bearing porphyritic granites. A member of the amphibole group.
Help on IMA Status: IMA Status: Approved IMA 1998 (Dana # Added)
Help on Locality: Locality: In the Arroyo de la Yedra, Eastern Pedriza Massif, Sierra de Guadarrama, Central System, Spain. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality and the prefixes "ferri" and "sodic" as recommended by the amphibole commission.
Help on Synonym: Synonym: ICSD 89815

Sodic-ferripedrizite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.536:1:0.2966
Help on Cell Dimensions: Cell Dimensions: a = 9.536, b = 17.789, c = 5.277, Z = 2; beta = 102.53° V = 873.85 Den(Calc)= 3.08
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.056(1)(310), 2.699(0.6)(151), 2.749(0.54)(330),1.639(0.44)(461), 3.397(0.28)(131), 8.25(0.24)(110), 1.396(0.23)(661), 4.446(0.22)(040), 1.92(0.2)(421),

Physical Properties of Sodic-ferripedrizite

Help on Cleavage: Cleavage: {110} Perfect, {110} Perfect, 001 Parting
Help on Color: Color: Green.
Help on Density: Density: 3.15
Help on Diaphaneity: Diaphaneity: Semitranslucent
Help on Fracture: Fracture: Brittle - Splintery - Brittle fracture leaving splintery fragments.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: gray

Optical Properties of Sodic-ferripedrizite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.034 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2266,KPDmeas= 0.2216,KC= 0.2293
Ncalc = 1.71 - 1.72
Help on Optical Data: Optical Data: Biaxial (-), a=1.694, b=1.698, g=1.702, bire=0.0080, 2V(Calc)=88, 2V(Meas)=83. Dispersion r > v medium.

Calculated Properties of Sodic-ferripedrizite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.04 gm/cc
note: Specific Gravity of Sodic-ferripedrizite =3.08 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PESodic-ferripedrizite = 4.97 barns/electron
U=PESodic-ferripedrizite x relectron= 15.10 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 2.07 (Gamma Ray American Petroleum Institute Units)
Concentration of Sodic-ferripedrizite per GRapi unit = 48.40 (%)

Estimated Radioactivity from Sodic-ferripedrizite - barely detectable


Sodic-ferripedrizite Classification

Help on  Dana Class: Dana Class: (66)Inosilicate Double-Width Unbranched Chains, W=2
  (66.01)with P=2 amphibole configuration
  (66.01.01)Group 1, the Mg-Fe-Mn-Li amphiboles (Monoclinic) Magnesiocummingtonite (Mg,Fe)7Si8O22(OH)2 C 2/m 2/m Cummingtonite []Mg7Si8O22(OH)2 C 2/m 2/m Grunerite []Fe7Si8O22(OH)2 C 2/m 2/m Permanganogrunerite! []Mn4(Fe)3(Si8O22)(OH)2 C 2/m 2/m Manganocummingtonite Na(Na,Mn)2(Mg4,Fe)5Si8O22(OH)2 C 2/m 2/m Manganogrunerite []Mn2Fe5Si8O22(OH) C 2/m 2/m Magnesioclinoholmquistite? Li2(Mg,Fe)3Al2Si8O22(OH)2 C 2/m 2/m Clinoholmquistite? [](Li2Mg3Al2)Si8O22(OH)2 C 2/m 2/m Clinoferroholmquistite [](Li2Fe3Al2)Si8O22(OH)2 C 2/m 2/m Ferri-clinoholmquistite! []Li2Mg3(Fe3)2(Si8O22)(OH)2 C 2/m 2/m Ferri-clinoferroholmquistite! []Li2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m Sodic-ferripedrizite! Na(LiNa)(Fe2Mg2Li)Si8O22(OH,F)2 C 2/m 2/m Ferripedrizite! NaLi2(Fe2Mg2Li)Si8O22(OH)2 C 2/m 2/m Sodic-ferri-ferropedrizite! NaLi2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m Fluoro-sodic-pedrizite! NaLi2(Mg2Al2Li)S5Si8O22F2 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.DE.05 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family
09.DE.05 Ferro-anthophyllite []Fe7Si8O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Anthophyllite []Mg7Si8O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Ferrogedrite []Fe5Al2Si6Al2O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Gedrite []Mg5Al2Si6Al2O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Ferroholmquistite [](Li2Fe3Al2)Si8O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Holmquistite [](Li2Mg3Al2)Si8O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Cummingtonite []Mg7Si8O22(OH)2 C 2/m 2/m
09.DE.05 Clinoferroholmquistite [](Li2Fe3Al2)Si8O22(OH)2 C 2/m 2/m
09.DE.05 Grunerite []Fe7Si8O22(OH)2 C 2/m 2/m
09.DE.05 Magnesiocummingtonite (Mg,Fe)7Si8O22(OH)2 C 2/m 2/m
09.DE.05 Manganogrunerite []Mn2Fe5Si8O22(OH) C 2/m 2/m
09.DE.05 Magnesioanthophyllite? (Mg,Fe)7Si8O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Protomangano-ferro-anthophyllite! (Mn,Fe)2(Fe,Mg)5(Si4O11)2(OH)2 Pnmn 2/m 2/m 2/m
09.DE.05 Sodicgedrite NaMg6AlSi6Al2O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Sodic-ferro-anthophyllite! NaFe7Si8O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Sodic-ferrogedrite! NaFe6AlSi6Al2O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Sodicanthophyllite NaMg7Si8O22(OH)2 P nma 2/m 2/m 2/m
09.DE.05 Permanganogrunerite! []Mn4(Fe)3(Si8O22)(OH)2 C 2/m 2/m
09.DE.05 Protoferro-anthophyllite! (Fe,Mn)2(Fe,Mg)5(Si4O11)2(OH)2 Pnmn 2/m 2/m 2/m
09.DE.05 Fluoro-sodic-pedrizite! NaLi2(Mg2Al2Li)S5Si8O22F2 C 2/m 2/m
09.DE.05 Sodic-ferri-ferropedrizite! NaLi2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m
09.DE.05 Manganocummingtonite Na(Na,Mn)2(Mg4,Fe)5Si8O22(OH)2 C 2/m 2/m
09.DE.05 Protoanthophyllite! (Mg,Fe)7Si8O22(OH)2 Pnmn 2/m 2/m 2/m
09.DE.05 Ferri-clinoferroholmquistite! []Li2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m
09.DE.05 Sodic-ferripedrizite! Na(LiNa)(Fe2Mg2Li)Si8O22(OH,F)2 C 2/m 2/m
09.DE.05 Ferripedrizite! NaLi2(Fe2Mg2Li)Si8O22(OH)2 C 2/m 2/m

Other Sodic-ferripedrizite Information

Help on References: References: NAME( MinRec, v 32, p 220) PHYS. PROP.(MinRec, v 32, p 220) OPTIC PROP.(MinRec, v 32, p 220)
Help on See Also: See Also: Links to other databases for Sodic-ferripedrizite :
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.DE.05





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