Zinalsite Mineral Data

Zinalsite Mineral Data
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General Zinalsite Information

Help on Chemical Formula: Chemical Formula: Zn2AlSi2O5(OH)4•2(H2O) (?)
Help on Composition: Composition: Molecular Weight = 397.99 gm
   Aluminum   6.78 %  Al   12.81 % Al2O3
   Zinc      32.86 %  Zn   40.90 % ZnO
   Silicon   14.11 %  Si   30.19 % SiO2
   Hydrogen   2.03 %  H    18.11 % H2O
   Oxygen    44.22 %  O
            ______        ______ 
            100.00 %      102.01 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn2AlSi2O5(OH)4•2(H2O)
Help on Environment: Environment: Probably an alteration product formed during the near-surface oxidation of zinc deposits. Fraipontite (1927) has priority over Zinalsite (1998).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1956 (Dana # Added)
Help on Locality: Locality: Kazakhstan Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the major chemical constituents, ZINc, ALuminum, and SIlicon.
Help on Name Pronunciation: Name Pronunciation: Zinalsite + Pronunciation Say ZINALSITE
 

Zinalsite Image

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Zinalsite   Fraipontite   Smithsonite

Comments: Pearly white, sub-mm fraipontite (zinalsite) crystals associated with green smithsonite.
Location: Lavrion District Mines, Lavrion District, Attikí (Attica; Attika) Prefecture, Greece. Scale: Specimen Size 1.4 x 1.0 x 0.9 cm.
© Rob Lavinsky

Zinalsite Crystallography
Help on Crystal System: Crystal System: Monoclinic
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.657(1), 2.446(0.8), 7.5633(0.8),
 

Physical Properties of Zinalsite

Help on Color: Color: White, Rose, Reddish brown.
Help on Density: Density: 3.007
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
 

Optical Properties of Zinalsite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.109 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.1921,KC= 0.2155
Ncalc = 1.65
Help on Optical Data: Optical Data: Biaxial (-), a=1.567, g=1.588, bire=0.0210
 

Calculated Properties of Zinalsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.98 gm/cc
note: Specific Gravity of Zinalsite =3.01 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEZinalsite = 16.67 barns/electron
U=PEZinalsite x rElectron Density= 49.61 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zinalsite is Not Radioactive
 

Zinalsite Classification
Help on Dana Class: Dana Class: 71.01.04.05 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.01)with 1:1 layers
  (71.01.04)Allophane group
 
71.01.04.01 Allophane Al2O3•(SiO2)1.3-2•((H2O))2.5-3 None
 
71.01.04.02 Hisingerite Fe2Si2O5(OH)4•2(H2O) Unk Mono
 
71.01.04.03 Imogolite Al2SiO3(OH)4 ? Mono
 
71.01.04.04 Neotocite (Mn,Fe)SiO3•(H2O)(?) None
 
71.01.04.05 Zinalsite! Zn2AlSi2O5(OH)4•2(H2O)(?) Mono
Help on Strunz Class: Strunz Class: 09.BX.00 09 - SILICATES (Germanates)
  09.B - Unclassified Strunz Phyllosilicates
  09.BX -Allophane group
 
09.BX.00 Spodiophyllite? (Na,K)4(Mg,Fe)3(Fe,Al)2(Si8O24) Mono
 
09.BX.00 Pimelite? Ni3Si4O10(OH)2•4(H2O) Unk. Hex
 
09.BX.00 Zinalsite Zn2AlSi2O5(OH)4•2(H2O)(?) Mono
 
09.BX.00 Voloshinite Rb(LiAl1.5[]0.5)(Al0.5Si3.5)O10F2 C 2/c 2/m
 
09.BX.00 Shlykovite KCa[Si4O9(OH)]•3H2O P 21/c 2/m
 
09.BX.00 Orlovite KLi2TiSi4O11F C 2 2
 
09.BX.00 IMA2009-011 Ba3Na(Fe,Mn)8Ti4(Si2O7)4O4(OH,F)7 C1 1
 

Other Zinalsite Information
Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Zinalsite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Ecole des Mines de Paris
4 - Franklin Minerals(Dunn)
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - MinMax(Deutsch)
10 - MinMax(English)
11 - Mineralienatlas (Deutsch)
12 - QUT Mineral Atlas
13 - Ruff.Info

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Zinalsite

Zn2AlSi2O5(OH)4•2(H2O) (?)
Dana No: 71.01.04.05 Strunz No: 09.BX.00
Locality:

 

Notes: