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Ferripedrizite Mineral Data

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General Ferripedrizite Information

Help on Chemical  Formula: Chemical Formula: NaLi2(Fe+++2Mg2Li)Si8O22(OH)2
Help on Composition: Composition: Molecular Weight = 839.32 gm
   Potassium   0.19 %  K     0.22 % K2O
   Sodium      2.11 %  Na    2.84 % Na2O
   Lithium     1.94 %  Li    4.17 % Li2O
   Calcium     0.24 %  Ca    0.33 % CaO
   Magnesium   4.31 %  Mg    7.16 % MgO
   Titanium    0.51 %  Ti    0.86 % TiO2
   Manganese   0.46 %  Mn    0.59 % MnO
   Aluminum    0.68 %  Al    1.28 % Al2O3
   Zinc        0.08 %  Zn    0.10 % ZnO
   Iron       16.57 %  Fe    7.28 % FeO / 15.60 % Fe2O3
   Silicon    26.77 %  Si   57.27 % SiO2
   Hydrogen    0.16 %  H     1.41 % H2O
   Oxygen     44.43 %  O
   Fluorine    1.56 %  F     1.56 % F
                -   %   F    -0.66 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.04Na0.52Na0.25Ca0.05Li1.7Li0.64Fe3+1.64Mg1.49Fe2+0.85Al0.21Ti0.09Mn2+0.07Zn0.01 Si8O22(OH)1.31F0.69
Help on Environment: Environment: Episyenites (non-magmatic hydrothermal rocks) replacing cordierite-bearing monzogranites. Related to Sodic-ferripedrizite as it is the higher temperature phase.
Help on IMA Status: IMA Status: Approved IMA 2001 (Dana # Added)
Help on Locality: Locality: Eastern Pedriza Massif, Arroyo de la Yedra Valley, Sierra de Guadarrama, Spain. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality and as the ferric end member from the IMA-CNMMN and its Amphibole Subcommittee.
Help on Synonym: Synonym: IMA2001-032
 

Ferripedrizite Image

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  Ferripedrizite

Comments: Black, bladed ferripedrizite crystals.
Location: East Pedriza Massif, Sierra de Guadarrama, Spain. Scale: See Image.
© Rruff Database

Ferripedrizite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5317:1:0.2962
Help on Cell Dimensions: Cell Dimensions: a = 9.501, b = 17.866, c = 5.292, Z = 2; beta = 102.17° V = 878.10 Den(Calc)= 3.17
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): 3.05(1)(310), 1.642(0.4)(461), 2.711(0.4)(151),1.394(0.3)(661), 2.747(0.3)(330), 8.251(0.3)(110), 2.161(0.2)(261), 2.495(0.2)(202),
 

Physical Properties of Ferripedrizite

Help on Cleavage: Cleavage: {110} Perfect
Help on Color: Color: Black.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Inclusions - Generally found as inclusions in other minerals.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: gray
 

Optical Properties of Ferripedrizite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.035 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2205,KC= 0.2284
Ncalc = 1.72
Help on Optical Data: Optical Data: Biaxial (-), a=1.695, b=1.7, g=1.702, bire=0.0070, 2V(Calc)=64, 2V(Meas)=55. Dispersion r > v.
 

Calculated Properties of Ferripedrizite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.12 gm/cc
note: Specific Gravity of Ferripedrizite =3.17 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEFerripedrizite = 6.40 barns/electron
U=PEFerripedrizite x relectron= 19.94 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 2.62 (Gamma Ray American Petroleum Institute Units)
Concentration of Ferripedrizite per GRapi unit = 38.14 (%)

Estimated Radioactivity from Ferripedrizite - barely detectable

 

Ferripedrizite Classification

Help on  Dana Class: Dana Class: 66.01.01.09a (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)
 
66.01.01.01 Magnesiocummingtonite (Mg,Fe)7Si8O22(OH)2 C 2/m 2/m
 
66.01.01.02 Cummingtonite []Mg7Si8O22(OH)2 C 2/m 2/m
 
66.01.01.03 Grunerite []Fe7Si8O22(OH)2 C 2/m 2/m
 
66.01.01.03b Permanganogrunerite! []Mn4(Fe)3(Si8O22)(OH)2 C 2/m 2/m
 
66.01.01.04 Manganocummingtonite Na(Na,Mn)2(Mg4,Fe)5Si8O22(OH)2 C 2/m 2/m
 
66.01.01.05 Manganogrunerite []Mn2Fe5Si8O22(OH) C 2/m 2/m
 
66.01.01.06 Magnesioclinoholmquistite? Li2(Mg,Fe)3Al2Si8O22(OH)2 C 2/m 2/m
 
66.01.01.07 Clinoholmquistite? [](Li2Mg3Al2)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.08 Clinoferroholmquistite [](Li2Fe3Al2)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.08a Ferri-clinoholmquistite! []Li2Mg3(Fe3)2(Si8O22)(OH)2 C 2/m 2/m
 
66.01.01.08b Ferri-clinoferroholmquistite! []Li2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.09 Sodic-ferripedrizite! Na(LiNa)(Fe2Mg2Li)Si8O22(OH,F)2 C 2/m 2/m
 
66.01.01.09a Ferripedrizite! NaLi2(Fe2Mg2Li)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.09b Sodic-ferri-ferropedrizite! NaLi2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m
 
66.01.01.09c 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 Ferripedrizite Information

Help on References: References: NAME( AmMin, 87:976) PHYS. PROP.(AmMin, 87:976) OPTIC PROP.(AmMin, 87:976)
Help on See Also: See Also: Links to other databases for 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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Print or Cut-and-Paste your Ferripedrizite Specimen Label here :

Ferripedrizite

NaLi2(Fe+++2Mg2Li)Si8O22(OH)2
Dana No: 66.01.01.09a Strunz No: 09.DE.05
Locality:

 

Notes:

 

 
   
 


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