Sieleckiite Mineral Data + 
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- 42.13.12.1 Sieleckiite Cu3Al4(PO4)2(OH)12·2(H2O) P1 or P1 Tri
- VII/D.23-10 Sieleckiite Cu3Al4(PO4)2(OH)12·2(H2O) P1 or P1 Tri
- VII/D.23-20 Rosieresite (Pb,Cu,Al)(PO4)x·n(H2O) None
- VII/D.23-30 Evansite Al3(PO4)(OH)6·6(H2O)(?) None
- VII/D.23-40 Liskeardite (Al,Fe)3(AsO4)(OH)6·5(H2O) Unk Ortho
General Sieleckiite Information |
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 Chemical Formula: |
Cu3Al4(PO4)2(OH)12·2(H2O) | ||
| Composition: |
Molecular Weight = 728.63 gm | ||
| Aluminum 14.81 % Al 27.99 % Al2O3 | |||
| Copper 26.16 % Cu 32.75 % CuO | |||
| Phosphorus 8.50 % P 19.48 % P2O5 | |||
| Hydrogen 2.21 % H 19.78 % H2O | |||
| Oxygen 48.31 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Cu3Al4(PO4)2(OH)12·2(H2O) | ||
| Environment: |
Oxidation zone of massive pyrite enriched with Cu. | ||
| IMA Status: |
Approved IMA 1988 | ||
| Locality: |
Mt. Oxide Cu mine, 150 km N of Mt. Isa, Queensland, Australia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Robert Sielecki (1958-), Australian geologist. | ||
Search for Sieleckiite Images | |||
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Images:
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Sieleckiite Crystallography |
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| Axial Ratios: |
a:b:c =1.2447:1:0.787 | ||
| Cell Dimensions: |
a = 9.41, b = 7.56, c = 5.95, Z = 1; alpha = 90.25°, beta = 91.27°, gamma = 104.02° V = 410.57 Den(Calc)= 2.95 | ||
| Crystal System: |
TriclinicSpace Group: P1 or P1 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.852(1), 5.036(1), 9.12(1), | ||
Physical Properties of Sieleckiite |
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| Cleavage: |
None | ||
| Color: |
Sky blue, Royal blue. | ||
| Density: |
3.02 | ||
| Diaphaniety: |
Translucent | ||
| Fracture: |
Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces. | ||
| Habit: |
Fibrous - Crystals made up of fibers. | ||
| Habit: |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | ||
| Habit: |
Spherical - Spherical, rounded aggregates. | ||
| Hardness: |
3 - Calcite | ||
| Luminescence: |
Non-fluorescent. | ||
| Luster: |
Pearly | ||
| Streak: |
light blue | ||
Optical Properties of Sieleckiite |
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| Gladstone-Dale: |
CI meas= 0.014 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.01 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2186,KPDmeas= 0.2136,KC= 0.2165 |
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| Optical Data: |
Biaxial (?), a=1.63, g=1.66, bire=0.0300 | ||
| Pleochroism (x): |
colorless. | ||
| Pleochroism (y): |
pale blue. | ||
| Pleochroism (z): |
pale blue. | ||
Calculated Properties of Sieleckiite |
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| Electron Density: |
relectron=2.92 gm/cc |
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| Fermion Index |
Fermion Index = 0.00023 Boson Index = 0.99977 |
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| Photoelectric: |
PESieleckiite = 12.02 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Sieleckiite is Not Radioactive |
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Sieleckiite Classification |
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| Dana Class: |
42.13.12.1 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen | ||
| (42.13)Dana Type | |||
| (42.13.12)Dana Group | |||
| Strunz Class: |
VII/D.23-10 VII - Phosphates, Arsenates and Vanadates | ||
| VII/D - Water-bearing phosphates with unfamiliar anions, cations of medium size: Cu, Zn, Mn, Al, Fe | |||
| VII/D.23 - Sieleckiite - Liskeardite series | |||
Other Sieleckiite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | ||
| See Also: |
Links to other databases for Sieleckiite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 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 -École des Mines de Paris Search for Sieleckiite using: Visit our Advertisers for Sieleckiite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Sieleckiite Mineral Data : Ask about Sieleckiite here : Print or Cut-and-Paste your Sieleckiite Specimen Label here :
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