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Grandviewite Mineral Data
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General Grandviewite Information
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 Chemical Formula: |
Cu3Al9(SO4)2(OH)29 |
| Composition: |
Molecular Weight = 1,118.81 gm |
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Aluminum 21.70 % Al 41.01 % Al2O3 |
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Copper 17.04 % Cu 19.18 % Cu2O |
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Hydrogen 2.61 % H 23.35 % H2O |
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Sulfur 5.73 % S 14.31 % SO3 |
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Oxygen 52.91 % O |
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______ ______ |
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100.00 % 97.85 % = TOTAL OXIDE |
| Empirical Formula: |
Cu3Al9(SO4)2(OH)29 |
| Environment: |
Secondary mineral in a copper mine. |
| IMA Status: |
Proposed IMA 2007 (Dana # Added) |
| Locality: |
Grandview mine, Grand Canyon National Park, Coconino County, Arizona, USA Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Synonym: |
IMA2007-004 |
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Grandviewite Image |
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Images:
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Grandviewite Crystallography
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| Axial Ratios: |
a:b:c =1.7062:1:1.5826 |
| Cell Dimensions: |
a = 10.908, b = 6.393, c = 10.118, Z = 1; beta = 107.47° V = 673.03 Den(Calc)= 2.76 |
| Crystal System: |
Monoclinic Space Group: P 2, Pm or P 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 6.208(1), 2.413(0.9), 2.99(0.9),3.949(0.79), 5.287(0.35), 9.667(0.33), 2.816(0.14), 3.625(0.1), |
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Physical Properties of Grandviewite
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| Color: |
Turquoise blue. |
| Diaphaneity: |
Transparent |
| Habit: |
Acicular - Occurs as needle-like crystals. |
| Luster: |
Vitreous (Glassy) |
| Streak: |
light blue |
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Optical Properties of Grandviewite
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| Optical Data: |
NCalc= 1.65 - from Gladstone-Dale relationship (KC = 0.2345) where Ncalc=Dcalc*KC+1
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Calculated Properties of Grandviewite
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| Electron Density: |
Bulk Density (Electron Density)=2.77 gm/cc
note: Specific Gravity of Grandviewite =2.76 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0006878045
Boson Index = 0.9993121955 |
| Photoelectric: |
PEGrandviewite = 8.21 barns/electron
U=PEGrandviewite x rElectron Density= 22.72 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Grandviewite is Not Radioactive |
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Grandviewite Classification
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| Dana Class: |
06.04.14.02 (06)Hydroxides and Oxides Containing Hydroxyl |
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(06.04)containing multiple cations |
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(06.04.14)Dana Group |
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06.04.14.01 Krivovichevite! Pb3[Al(OH)6](SO4)(OH) R 3c 3m |
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06.04.14.02 Grandviewite! Cu3Al9(SO4)2(OH)29 P 2, Pm or P 2/m Mono |
| Strunz Class: |
07.XX.00 07 - SULFATES (SELENATES, TELLURATES) |
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07.X - Unclassified Strunz SULFATES (SELENATES, TELLURATES) |
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07.XX -Unknown |
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07.XX.00 Blakeite Fe2(TeO3)3 Cubic ? Cubic |
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07.XX.00 Aiolosite! Na4Bi(SO4)3Cl P 63/m 6/m |
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07.XX.00 Steverustite Pb5(OH)5[Cu(SO3S--)3](H2O)1.67 P 21/n 2/m |
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07.XX.00 Adranosite (NH4)4NaAl2(SO4)4Cl(OH)2 I 41/acd 4mm |
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07.XX.00 Grandviewite! Cu3Al9(SO4)2(OH)29 P 2, Pm or P 2/m Mono |
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07.XX.00 IMA2009-008 Y2[(UO2)8O6(SO4)4(OH)2]•26H2O P1 1 |
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Other Grandviewite Information
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| See Also: |
Links to other databases for Grandviewite :
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 Grandviewite Specimen Label here :
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Grandviewite
Cu3Al9(SO4)2(OH)29
Dana No: 06.04.14.02 Strunz No: 07.XX.00
Locality:
Notes:
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