Zinalsite Mineral Data + Say ZINALSITE

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.
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.
 

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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
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:

relectron=2.98 gm/cc
note: rZinalsite =3.01 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.02027
Boson Index = 0.97973
Help on Photoelectric: Photoelectric:

PEZinalsite = 16.67 barns/electron
U=PEZinalsite x relectron= 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: 71.1.4.5 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.1)with 1:1 layers
  (71.1.4)Allophane group
 
71.1.4.1 Allophane Al2O3·(SiO2)1.3-2·((H2O))2.5-3 None
 
71.1.4.2 Hisingerite Fe2Si2O5(OH)4·2(H2O) Unk Mono
 
71.1.4.3 Imogolite Al2SiO3(OH)4 ? Mono
 
71.1.4.4 Neotocite (Mn,Fe)SiO3·(H2O)(?) None
 
71.1.4.5 Zinalsite ! Zn2AlSi2O5(OH)4·2(H2O)(?) Mono
Help on  Strunz Class: Strunz Class: VIII/H.27-90 VIII - Silicates
  VIII/H - Phyllosilicates (layered) Mica like with [Si4O10]4- and related groups
  VIII/H.27 - Serpentine group
 
VIII/H.27-10 Antigorite (Mg,Fe)3Si2O5(OH)4 Cm m
 
VIII/H.27-20 Lizardite Mg3Si2O5(OH)4 P1 1
 
VIII/H.27-30 Clinochrysotile Mg3Si2O5(OH)4 Cc, C 2/m Mono
 
VIII/H.27-40 Orthochrysotile Mg3Si2O5(OH)4 Unk Ortho
 
VIII/H.27-50 Parachrysotile Mg3Si2O5(OH)4 Unk Ortho
 
VIII/H.27-55 Caryopilite (Mn,Mg,Zn,Fe)3(Si,As)2O510(OH,Cl)4 Cm or C 2/m Mono
 
VIII/H.27-60 Greenalite (Fe,Fe)2-3Si2O5(OH)4 Unk Mono
 
VIII/H.27-70 Berthierine (Fe,Fe,Al,Mg)2-3(Si,Al)2O5(OH)4 Cm m
 
VIII/H.27-80 Fraipontite (Zn,Al)3(Si,Al)2O5(OH)4 Cm m
 
VIII/H.27-90 Zinalsite Zn2AlSi2O5(OH)4·2(H2O)(?) Mono
 
VIII/H.27-95 Dozyite (Mg7Al2)(Si4Al2)O15(OH)12 Cm m
 
VIII/H.27-100 Amesite Mg2Al(SiAl)O5(OH)4 C1 1
 
VIII/H.27-110 Kellyite (Mn,Mg,Al)3(Si,Al)2O5(OH)4 P 63 6
 
VIII/H.27-120 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 31m 3m
 
VIII/H.27-140 Karpinskite (Mg,Ni)2Si2O5(OH)2(?) Unk Mono
 
VIII/H.27-150 Nepouite Ni3Si2O5(OH)4 Ccm21 mm2
 
VIII/H.27-160 Pecoraite Ni3Si2O5(OH)4 C 2/m 2/m
 
VIII/H.27-170 Brindleyite (Ni,Mg,Fe)2Al(SiAl)O5(OH)4 C 2 2
 
VIII/H.27-180 Maufite (Mg,Ni)Al4Si3O13·4(H2O)(?) Mono ? Mono
 
VIII/H.27-190 Carlosturanite (Mg,Fe,Ti,Mn)21(Si,Al)12O28(OH)34 Cm m
 

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 - Franklin Minerals(Dunn) 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Zinalsite

Zn2AlSi2O5(OH)4·2(H2O) (?)
Dana No: 71.1.4.5 Strunz No: VIII/H.27-90
Locality:

 

Notes:

 

 
   
 
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