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Zincaluminite Mineral Data
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General Zincaluminite Information
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 Chemical Formula: |
Zn6Al6(SO4)2(OH)26•5(H2O) |
| Composition: |
Molecular Weight = 1,278.62 gm |
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Aluminum 12.66 % Al 23.92 % Al2O3 |
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Zinc 30.68 % Zn 38.19 % ZnO |
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Hydrogen 2.84 % H 25.36 % H2O |
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Sulfur 5.02 % S 12.52 % SO3 |
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Oxygen 48.80 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Zn6Al6(SO4)2(OH)26•5(H2O) |
| Environment: |
Questionable species. Ancient lead slags. |
| IMA Status: |
Valid Species (Pre-IMA) 1881 |
| Locality: |
Laurium, Greece. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the composition. |
| Name Pronunciation: |
Zincaluminite + Pronunciation  |
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Zincaluminite Image |
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Images:
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Zincaluminite Crystallography
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| Crystal System: |
Hexagonal Space Group: Unk |
| X Ray Diffraction: |
By Intensity(I/Io): 4.83(1), 11.1(0.5), 7.07(0.4),2.4(0.3), 2.45(0.3), 4.35(0.3), 2.71(0.2), 3.55(0.2), |
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Physical Properties of Zincaluminite
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| Color: |
Bluish white, White, Light blue. |
| Density: |
2.26 |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Hardness: |
2.5-3 - Finger Nail-Calcite |
| Streak: |
white |
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Optical Properties of Zincaluminite
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| Gladstone-Dale: |
CI meas= -0.062 (Fair) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2319,KC= 0.2183
Ncalc = 1.49 |
| Optical Data: |
Uniaxial (-), e=1.514, w=1.534, bire=0.0200. |
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Calculated Properties of Zincaluminite
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| Electron Density: |
Bulk Density (Electron Density)=2.26 gm/cc
note: Specific Gravity of Zincaluminite =2.26 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEZincaluminite = 15.46 barns/electron
U=PEZincaluminite x rElectron Density= 34.86 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zincaluminite is Not Radioactive |
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Zincaluminite Classification
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| Dana Class: |
31.02.03.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen |
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(31.02)where (A+ B++)6 (XO4) Zq�x(H2O) |
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(31.02.03)Dana Group |
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31.02.03.01 Zincaluminite Zn6Al6(SO4)2(OH)26•5(H2O) Unk Hex |
| Strunz Class: |
07.DD.35 07 - SULFATES (SELENATES, TELLURATES) |
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07.D - Sulfates (selenates, etc.) with additional anions, with H2O |
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07.DD -With only medium-sized cations; sheets of edge-sharing octahedra |
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07.DD.35 Carrboydite (Ni,Cu)14Al9(SO4,CO3)6(OH)43•7(H2O) Unk Hex |
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07.DD.35 Glaucocerinite (Zn,Cu)5Al3(SO4)1.5(OH)16•9(H2O) Unk (HEX-R) Trig |
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07.DD.35 Honessite Ni6Fe2(SO4)(OH)16•4(H2O) R 3m 3 2/m |
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07.DD.35 Hydrowoodwardite! Cu1-xAlx(OH)2(SO4)x/2•n(H2O)with0<x<0.67andn>3x/2 R 3m 3 2/m |
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07.DD.35 Zincowoodwardite! [Zn1-xAlx(OH)2][(SO4)x/2(H2O)n] P 3- or R 3m 3 |
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07.DD.35 Hydrohonessite Ni6Fe2(SO4)(OH)16•7(H2O) Unk Hex |
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07.DD.35 Motukoreaite Na2Mg38Al24(CO3)13(SO4)8(OH)108•56(H2O) R 3m 3 2/m |
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07.DD.35 Mountkeithite (Mg,Ni)11(Fe,Cr)3(SO4,CO3)3.5(OH)24•11(H2O) Unk Hex |
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07.DD.35 Shigaite Mn7Al4(SO4)2(OH)22•8(H2O) R 3 3 |
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07.DD.35 Natroglaucocerinite! (Na,Zn,Cu)10Al6(SO4)3(OH)32•18(H2O)? Unk |
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07.DD.35 Wermlandite (Ca,Mg)Mg7(Al,Fe)2(SO4)2(OH)18•12(H2O) P 3c1 3 2/m |
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07.DD.35 Nikischerite! NaFe6Al3(SO4)2(OH)18(H2O)12 R 3 3 |
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07.DD.35 Zincaluminite Zn6Al6(SO4)2(OH)26•5(H2O) Unk Hex |
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07.DD.35 Woodwardite Cu4Al2(SO4)(OH)12•2-4(H2O) Unk Hex |
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07.DD.35 Zincowoodwardite-3R! [Zn1BxAlx(OH)2][(SO4)x/2•n(H2O)],0.32<x<0.50,n=0.59 R 3m 3 2/m |
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07.DD.35 Zincowoodwardite-1T! [Zn1BxAlx(OH)2][(SO4)x/2•n(H2O)],x=0.33,n.0.96 P 3 3 |
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Other Zincaluminite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Zincaluminite :
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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Print or Cut-and-Paste your Zincaluminite Specimen Label here :
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Zincaluminite
Zn6Al6(SO4)2(OH)26•5(H2O)
Dana No: 31.02.03.01 Strunz No: 07.DD.35
Locality:
Notes:
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