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Zincsilite Mineral Data

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General Zincsilite Information

Help on Chemical  Formula: Chemical Formula: Zn3Si4O10(OH)2•4(H2O) (?)
Help on Composition: Composition: Molecular Weight = 574.58 gm
   Zinc      34.14 %  Zn   42.49 % ZnO
   Silicon   19.55 %  Si   41.83 % SiO2
   Hydrogen   1.75 %  H    15.68 % H2O
   Oxygen    44.55 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn3Si4O10(OH)2•4(H2O)
Help on Environment: Environment: Pseudomorphs after diopside in a galena-sphalerite-chalcopyrite skarn. Forms a series with sauconite.
Help on IMA Status: IMA Status: Approved IMA 1960
Help on Locality: Locality: Batystau, central Kazakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Name for the composition (Zinc Silicate).
Help on Name Pronunciation: Name Pronunciation: Zincsilite + Pronunciation Say ZINCSILITE
 

Zincsilite Image

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  Zincsilite

Comments: Chalky massive zincsilite.
Location: Horado Mine, Horado Cho, Mugi Gun, Gifu, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zincsilite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5561:1:1.6684
Help on Cell Dimensions: Cell Dimensions: a = 5.1, b = 9.17, c = 15.3, Z = 2; beta = 90° V = 715.54 Den(Calc)= 2.67
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): 15.3(1), 4.09(0.7), 1.528(0.6),
 

Physical Properties of Zincsilite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Bluish white, White, Greenish white.
Help on Density: Density: 2.61 - 2.71, Average = 2.66
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Habit: Habit: Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).
Help on Hardness: Hardness: 1.5-2 - Talc-Gypsum
Help on Luster: Luster: Pearly
Help on Streak: Streak: white
 

Optical Properties of Zincsilite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2041,KPDmeas= 0.2049,KC= 0.2074
Ncalc = 1.54 - 1.56
Help on Optical Data: Optical Data: Biaxial (-), a=1.514, b=1.559, g=1.562, bire=0.0480, 2V(Calc)=28, 2V(Meas)=0-22.
 

Calculated Properties of Zincsilite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.63 gm/cc
note: Specific Gravity of Zincsilite =2.66 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEZincsilite = 17.32 barns/electron
U=PEZincsilite x rElectron Density= 45.55 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zincsilite is Not Radioactive
 

Zincsilite Classification

Help on  Dana Class: Dana Class: 71.03.01b.08 (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 Zincsilite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Zincsilite :
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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Zincsilite

Zn3Si4O10(OH)2•4(H2O) (?)
Dana No: 71.03.01b.08 Strunz No: 09.EC.45
Locality:

 

Notes:

 

 
   
 


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