Ferrosaponite  Mineral Data

Ferrosaponite Mineral Data

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General Ferrosaponite Information

Help on Chemical  Formula: Chemical Formula: Ca0.3(Fe++,Mg,Fe+++)3(Si,Al)4O10(OH)2•4(H2O)
Help on Composition: Composition: Molecular Weight = 526.49 gm
   Potassium   0.07 %  K     0.09 % K2O
   Sodium      0.17 %  Na    0.24 % Na2O
   Calcium     2.36 %  Ca    3.30 % CaO
   Magnesium   3.92 %  Mg    6.51 % MgO
   Aluminum    5.18 %  Al    9.78 % Al2O3
   Iron       22.38 %  Fe   21.02 % FeO /  8.64 % Fe2O3
   Silicon    15.31 %  Si   32.75 % SiO2
   Hydrogen    1.98 %  H    17.67 % H2O
   Oxygen     48.62 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.31Na0.04K0.01Fe2+1.54Mg0.85Fe3+0.45Si2.87Al1.01Fe3+0.12O9.67(OH)2.33·4(H2O)
Help on Environment: Environment: Hydrothermal mineral. Smectite group
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Levoberezhye "Iceland Spar" deposit near the Nizhnyaya Tunguska River, Evenkiya, Siberia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Fe2+ dominant analog of saponte.
Help on Synonym: Synonym: IMA2002-028
 

Ferrosaponite Image

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Ferrosaponite

Comments: Black to greenish black balls of radiating Ferrosaponite crystals on white calcite.
Location: Levoberezhye Icelandspar deposit, Nizhuyaya Tunguska river, Evenkiya, Siberia, Russia. Scale: Not Given.
© Diederik Visser

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Ferrosaponite

Comments: Holotype specimens of earthy ferrosaponite.
Location: Russia, Eastern-Siberian Region, Krasnoyarsk Territory, Evenkia, Levoberezhye Iceland Spar Deposit. Scale: FOV 6 cm.
© German Type Specimen Catalogue

Ferrosaponite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5762:1:1.5731
Help on Cell Dimensions: Cell Dimensions: a = 5.363, b = 9.306, c = 14.64, Z = 2; beta = 94.98° V = 727.90 Den(Calc)= 2.40
Help on Crystal System: Crystal System: MonoclinicSpace Group: C?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.03(1)(031), 1.549(0.9)(060), 2.429(0.9)(006),2.585(0.9)(201), 4.72(0.9)(020), 7.37(0.9)(002), 3.8(0.8),
 

Physical Properties of Ferrosaponite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Dark green, Brownish green.
Help on Density: Density: 2.49
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Columnar - Forms columns
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: green
 

Optical Properties of Ferrosaponite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.02 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2404,KPDmeas= 0.2317,KC= 0.2358
Ncalc = 1.57 - 1.59
Help on Optical Data: Optical Data: Biaxial (-), a=1.448, b=1.641, g=1.642, bire=0.1940, 2V(Calc)=6, 2V(Meas)=5. Dispersion Calculated α index.
 

Calculated Properties of Ferrosaponite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.49 gm/cc
note: Specific Gravity of Ferrosaponite =2.49 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEFerrosaponite = 7.68 barns/electron
U=PEFerrosaponite x relectron= 19.15 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 1.10 (Gamma Ray American Petroleum Institute Units)
Concentration of Ferrosaponite per GRapi unit = 91.21 (%)

Estimated Radioactivity from Ferrosaponite - barely detectable

 

Ferrosaponite Classification

Help on  Dana Class: Dana Class: 71.03.01b.02a (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.03)with 2:1 clays
  (71.03.01b)Smectite group (Trioctahedral Smectites)
 
71.03.01b.01 Sobotkite? (K,Ca0.5)0.33(Mg,Al)3(Si3Al)O10(OH)2•1-5(H2O) Unk. Mono
 
71.03.01b.02 Saponite (Ca/2,Na)0,3(Mg,Fe)3(Si,Al)4O10(OH)2•4(H2O) C 2/m 2/m
 
71.03.01b.02a Ferrosaponite! Ca0.3(Fe,Mg,Fe)3(Si,Al)4O10(OH)2•4(H2O) C? Mono
 
71.03.01b.03 Sauconite Na0,3Zn3(Si,Al)4O10(OH)2•4(H2O) C 2/m 2/m
 
71.03.01b.04 Hectorite Na0,3(Mg,Li)3Si4O10(OH)2 C 2/m 2/m
 
71.03.01b.05 Pimelite? Ni3Si4O10(OH)2•4(H2O) Unk. Hex
 
71.03.01b.06 Stevensite (Ca0.5,Na)0.33(Mg,Fe)3Si4O10(OH)2•n(H2O) Unk (ORTH ?) Mono
 
71.03.01b.07 Yakhontovite (Ca,K)0.5(Cu,Fe,Mg)2Si4O10(OH)2•3(H2O) C 2/m 2/m
 
71.03.01b.08 Zincsilite Zn3Si4O10(OH)2•4(H2O)(?) C 2/m ? 2/m
Help on  Strunz Class: Strunz Class: 09.EC.45 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
 
09.EC.45 Griffithite* 4(Mg,Fe,Ca)O.(Al,Fe)2O3.5SiO2•7(H2O) Mono
 
09.EC.45 Hectorite Na0,3(Mg,Li)3Si4O10(OH)2 C 2/m 2/m
 
09.EC.45 Swinefordite (Li,Ca0.5,Na)0.72(Li,Al,Mg)2.66(Si,Al)4O10(OH,F)2•2(H2O) C 2/m (MON or ORTH) 2/m
 
09.EC.45 Zincsilite Zn3Si4O10(OH)2•4(H2O)(?) C 2/m ? 2/m
 
09.EC.45 Saponite (Ca/2,Na)0,3(Mg,Fe)3(Si,Al)4O10(OH)2•4(H2O) C 2/m 2/m
 
09.EC.45 Sauconite Na0,3Zn3(Si,Al)4O10(OH)2•4(H2O) C 2/m 2/m
 
09.EC.45 Spadaite MgSiO2(OH)2•(H2O)(?) Ortho
 
09.EC.45 Sobotkite? (K,Ca0.5)0.33(Mg,Al)3(Si3Al)O10(OH)2•1-5(H2O) Unk. Mono
 
09.EC.45 Stevensite (Ca0.5,Na)0.33(Mg,Fe)3Si4O10(OH)2•n(H2O) Unk (ORTH ?) Mono
 
09.EC.45 Ferrosaponite! Ca0.3(Fe,Mg,Fe)3(Si,Al)4O10(OH)2•4(H2O) C? Mono
 

Other Ferrosaponite Information

Help on References: References: NAME( AmMin, 89:467) PHYS. PROP.(AmMin, 89:467) OPTIC PROP.(AmMin, 89:467)
Help on See Also: See Also: Links to other databases for Ferrosaponite :
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 Ferrosaponite Specimen Label here :

Ferrosaponite

Ca0.3(Fe++,Mg,Fe+++)3(Si,Al)4O10(OH)2•4(H2O)
Dana No: 71.03.01b.02a Strunz No: 09.EC.45
Locality:

 

Notes: