General Gutsevichite Information
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Chemical Formula: |
Al3(PO4)2(OH)3•8(H2O) |
Composition: |
Molecular Weight = 466.03 gm |
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Aluminum 17.37 % Al 32.82 % Al2O3 |
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Phosphorus 13.29 % P 30.46 % P2O5 |
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Hydrogen 4.11 % H 36.72 % H2O |
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Oxygen 65.23 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Al3(PO4)2(OH)3•8(H2O) |
Environment: |
In cavities in oxidized V-bearing shales. Discredited as being incompletly characterized. |
IMA Status: |
Discredited IMA 1962 |
Locality: |
NW Kazakhstan. Link to MinDat.org Location Data. |
Name Origin: |
Named in 1959 for V. P. Gutsevich, geologist in Kazakhstan. |
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Gutsevichite Image |
Images:
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Gutsevichite Crystallography
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Crystal System: |
IsometricSpace Group: Unk |
X Ray Diffraction: |
By Intensity(I/Io): 4.08(1), 2.51(0.9), 1.82(0.8),1.45(0.7), 3.51(0.5), |
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Physical Properties of Gutsevichite
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Color: |
Greenish brown, Yellow green, Dark brown. |
Density: |
1.9 - 2, Average = 1.95 |
Diaphaneity: |
Translucent |
Habit: |
Concretionary - Rounded massive fine-grained materials. |
Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
Hardness: |
2.5 - Finger Nail |
Luster: |
Waxy |
Streak: |
white |
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Optical Properties of Gutsevichite
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Gladstone-Dale: |
CI meas= -0.197 (Poor) - where the CI = (1-KPDmeas/KC) KPDmeas= 0.2974,KC= 0.2485 Ncalc = 1.47 - 1.5 |
Optical Data: |
Isotropic, n=1.56-1.6. |
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Calculated Properties of Gutsevichite
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Electron Density: |
Bulk Density (Electron Density)=2.01 gm/cc note: Specific Gravity of Gutsevichite =1.95 gm/cc. |
Fermion Index: |
Fermion Index = 0.0003192641 Boson Index = 0.9996807359 |
Photoelectric: |
PEGutsevichite = 1.23 barns/electron U=PEGutsevichite x rElectron Density= 2.48 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Gutsevichite is Not Radioactive |
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Gutsevichite Classification
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Dana Class: |
42.10.04.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.10)where (AB)3 (XO4)2 Zq · x(H2O) |
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(42.10.04)Dana Group |
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42.10.04.01 Gutsevichite? Al3(PO4)2(OH)3•8(H2O) Unk Cubic |
Strunz Class: |
08.DM.25 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DM -With large and medium-sized cations, (OH, etc.):RO4 > 2:1 |
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08.DM.25 Gutsevichite? Al3(PO4)2(OH)3•8(H2O) Unk Cubic |
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08.DM.25 Yukonite Ca7Fe11(AsO4)9O10•24.3(H2O) None |
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Other Gutsevichite Information
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References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Gutsevichite :
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 Gutsevichite Specimen Label here :
Gutsevichite
Al3(PO4)2(OH)3•8(H2O)
Dana No: 42.10.04.01 Strunz No: 08.DM.25
Locality:
Notes:
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