Cloncurryite Mineral Data
General Cloncurryite Information
Chemical Formula:
[Cu0.56(VO)0.44]Al2(PO4)2(F,OH)•2.5H2O)
Composition:
Molecular Weight = 372.48 gm
Aluminum 14.49 % Al 27.37 % Al2 O3
Vanadium 6.02 % V 8.85 % V2 O3
Copper 9.55 % Cu 11.96 % CuO
Phosphorus 16.63 % P 38.11 % P2 O5
Hydrogen 1.42 % H 12.70 % H2 O
Oxygen 48.06 % O
Fluorine 3.83 % F 3.83 % F
- %
F -1.61 % -O=F2
______ ______
100.00 % 101.20 % = TOTAL OXIDE
Empirical Formula:
Cu0.56 (V3+ )0.44 O0.44 Al2 (PO4 )2 F0.75 (OH)0.25 �2.5(H2 O)
Environment:
Found in a ferruginous, silicified gossan matrix. New structure type
IMA Status:
Approved IMA 2005 (Dana # Added)
Locality:
Great Australia deposit, Cloncurry, Queensland, Australia Link to MinDat.org Location Data.
Name Origin:
Named for the locality.
Synonym:
IMA2005-060
Cloncurryite Crystallography
Axial Ratios:
a:b:c =0.4069:1:1.5575
Cell Dimensions:
a = 4.9573, b = 12.1824, c = 18.9749, Z = 4; beta = 90.933° V = 1,145.78 Den(Calc)= 2.16
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21 /c
X Ray Diffraction:
By Intensity(I/Io ): 6.101(1), 5.621(0.91), 9.515(0.67), 3.338(0.21), 3.976(0.21), 3.163(0.17), 4.753(0.17), 3.047(0.13),
Physical Properties of Cloncurryite
Cleavage:
None
Color:
Pale sky blue.
Diaphaneity:
Transparent
Fracture:
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Habit:
Acicular - Occurs as needle-like crystals.
Habit:
Encrustations - Forms crust-like aggregates on matrix.
Hardness:
2 - Gypsum
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Cloncurryite
Gladstone-Dale:
CI calc = -0.175 (Poor) - where the CI = (1-KPDcalc /KC ) KPDcalc = 0.2542,KC = 0.2164 Ncalc = 1.47
Optical Data:
Biaxial (-), a=1.548, b=1.55,
Calculated Properties of Cloncurryite
Electron Density:
Bulk Density (Electron Density)=2.13 gm/cc note: Specific Gravity of Cloncurryite =2.16 gm/cc.
Fermion Index:
Fermion Index = 0.0003832788 Boson Index = 0.9996167212
Photoelectric:
PECloncurryite = 6.46 barns/electronU=PECloncurryite x r Electron Density= 13.78 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Cloncurryite is Not Radioactive
Cloncurryite Classification
Dana Class:
42.06.13.02 (42) Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
(42.06) where (AB)2 (XO4) Zq � x(H2O)
(42.06.13) Nevadaite Group
42.06.13.01 Nevadaite ! (Cu,[],Al,V)6[Al8(PO4)8F8](H2O)23 P 21 mn 2 2 2
42.06.13.02 Cloncurryite ! [Cu0.56(VO)0.44]Al2(PO4)2(F,OH)•2.5H2O) P 21 /c 2/m
Strunz Class:
08.DC.60 08 - PHOSPHATES, ARSENATES, VANADATES
08.D - Phosphates, etc
08.DC -With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
08.DC.60 Nevadaite ! (Cu,[],Al,V)6[Al8(PO4)8F8](H2O)23 P 21 mn 2 2 2
08.DC.60 Cloncurryite ! [Cu0.56(VO)0.44]Al2(PO4)2(F,OH)•2.5H2O) P 21 /c 2/m
Other Cloncurryite Information
References:
NAME( Australian Journal of Mineralogy, v5:5-13) PHYS. PROP.(Australian Journal of Mineralogy, v5:5-13) OPTIC PROP.(Australian Journal of Mineralogy, v5:5-13)
See Also:
Links to other databases for Cloncurryite :
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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Cloncurryite
[Cu0.56(VO)0.44]Al2(PO4)2(F,OH)•2.5H2O)
Dana No: 42.06.13.02 Strunz No: 08.DC.60
Locality:
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