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Ferrisurite Mineral Data

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General Ferrisurite Information

Help on Chemical  Formula: Chemical Formula: (Pb,Cu)2-3(CO3)1.5-2(OH,F)0.5-1[(Fe,Al)2Si4O10(OH)2]•n(H2O)
Help on Composition: Composition: Molecular Weight = 914.93 gm
   Sodium     0.25 %  Na    0.34 % Na2O
   Aluminum   1.77 %  Al    3.34 % Al2O3
   Iron       7.94 %  Fe    0.79 % FeO / 10.47 % Fe2O3
   Copper     4.17 %  Cu    4.69 % Cu2O
   Silicon   12.28 %  Si   26.27 % SiO2
   Hydrogen   0.39 %  H     3.45 % H2O
   Lead      38.50 %  Pb   41.47 % PbO
   Carbon     2.23 %  C     8.18 % CO2
   Oxygen    31.65 %  O
   Fluorine   0.83 %  F     0.83 % F
               -   %   F    -0.35 % -O=F2    
            ______        ______ 
            100.00 %       99.48 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb1.7Cu0.6Na0.1(CO3)1.7(OH)0.5F0.4Fe3+1.2Al0.6Fe2+0.1Si4O10(OH)2�0.5(H2O)
Help on Environment: Environment: Oxidize lead deposit in contact metamorphosed and faulted shaly limestone.
Help on IMA Status: IMA Status: Approved IMA 1992
Help on Locality: Locality: Shirley Ann claim, Ubehebe district, Inyo County, California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition and relationship to surite.
Help on Name Pronunciation: Name Pronunciation: Ferrisurite + Pronunciation Say FERRISURITE
Help on Synonym: Synonym: IMA1990-056

Ferrisurite Image

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Comments: Olive-green crystalline ferrisurite, with radiating structure.
Location: Shirley Ann Claim, near Darwin, Inyo County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrisurite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5774:1:1.7882
Help on Cell Dimensions: Cell Dimensions: a = 5.241, b = 9.076, c = 16.23, Z = 2; beta = 90.03° V = 772.02 Den(Calc)= 3.94
Help on Crystal System: Crystal System: Monoclinic Space Group: P 21 or P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.53(1), 3.24(0.9), 2.612(0.8),2.272(0.5), 16.1(0.4), 3.727(0.35), 1.715(0.25), 5.4(0.25),

Physical Properties of Ferrisurite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Forest green, Yellow green, Olive green.
Help on Density: Density: 4
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Silky
Help on Streak: Streak: greenish yellow

Optical Properties of Ferrisurite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.01 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.194,KPDmeas= 0.1911,KC= 0.1922
Ncalc = 1.76 - 1.77
Help on Optical Data: Optical Data: Biaxial (+), a=1.757, b=1.763, g=1.773, bire=0.0160, 2V(Calc)=76, 2V(Meas)=76.
Help on Pleochroism (x): Pleochroism (x): yellow.
Help on Pleochroism (y): Pleochroism (y): brown.
Help on Pleochroism (z): Pleochroism (z): light green.

Calculated Properties of Ferrisurite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.65 gm/cc
note: Specific Gravity of Ferrisurite =4.00 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.09
Boson Index = 0.91
Help on Photoelectric: Photoelectric: PEFerrisurite = 652.49 barns/electron
U=PEFerrisurite x rElectron Density=2,382.51 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrisurite is Not Radioactive

Ferrisurite Classification

Help on  Dana Class: Dana Class: (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.02)with 2:1 Layers
  (71.02.04)Surite group Ferrisurite (Pb,Cu)2-3(CO3)1.5-2(OH,F)0.5-1[(Fe,Al)2Si4O10(OH)2]•n(H2O) P 21 or P 21/m Mono Surite (Pb,Cu)2-3(CO3)1.5-2(OH,F)0.5-1[(Al,Fe)2(Si,Al)4O10(OH)2]•n(H2O) P 21 ro P 21/m Mono Niksergievite! [Ba,Ca)2(Al,Si)7O10(CO3)(OH)6•nH2O C 2/m, C 2, or Cm Mono
Help on  Strunz Class: Strunz Class: 09.EC.75 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
09.EC.75 Ferrisurite (Pb,Cu)2-3(CO3)1.5-2(OH,F)0.5-1[(Fe,Al)2Si4O10(OH)2]•n(H2O) P 21 or P 21/m Mono
09.EC.75 Surite (Pb,Cu)2-3(CO3)1.5-2(OH,F)0.5-1[(Al,Fe)2(Si,Al)4O10(OH)2]•n(H2O) P 21 ro P 21/m Mono
09.EC.75 Niksergievite! [Ba,Ca)2(Al,Si)7O10(CO3)(OH)6•nH2O C 2/m, C 2, or Cm Mono

Other Ferrisurite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Ferrisurite :
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

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Dana No: Strunz No: 09.EC.75





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