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Bleasdaleite Mineral Data
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General Bleasdaleite Information
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 Chemical Formula: |
(Ca,Fe+++)2Cu5(Bi,Cu)(PO4 )4(H2O,OH,Cl)13 |
| Composition: |
Molecular Weight = 1,047.70 gm |
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Calcium 6.12 % Ca 8.56 % CaO |
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Iron 2.13 % Fe 3.05 % Fe2O3 |
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Copper 31.54 % Cu 35.51 % Cu2O |
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Bismuth 1.60 % Bi 1.78 % Bi2O3 |
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Phosphorus 11.83 % P 27.10 % P2O5 |
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Hydrogen 1.94 % H 17.37 % H2O |
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Chlorine 1.02 % Cl 1.02 % Cl |
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- %
Cl -0.23 % -O=Cl2 |
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Oxygen 43.83 % O |
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______ ______ |
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100.00 % 94.15 % = TOTAL OXIDE |
| Empirical Formula: |
Ca1.6Fe3+0.4Cu5Bi0.08Cu0.2(PO4)4(H2O)7.5(OH)5.2Cl0.3 |
| Environment: |
In a pegmatite associated with other secondary minerals. The Bi P-dominant analogue of rechelsdorfite |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
Granite quarry 10 km SSW of the township of Lake Boga, northern Victoria, Australia. Link to MinDat.org Location Data. |
| Name Origin: |
For the Reverend John Ignatius Bleasdale (1822-1884), an enthusiastic proponent of minerals from Victoria. |
| Synonym: |
IMA1998-003a |
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Bleasdaleite Image |
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Images:
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Bleasdaleite
Comments: SEM image of a bleasdaleite rosette.
Location: Granite quarry, 10 km south-south-west of Lake Boga, Victoria, Australia.
Scale: Scale Dots 20 µm.
© Museum Victoria |
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Bleasdaleite Crystallography
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| Axial Ratios: |
a:b:c =1.0266:1:1.0823 |
| Cell Dimensions: |
a = 14.2, b = 13.832, c = 14.971, Z = 4; beta = 102.08° V = 2,875.41 Den(Calc)= 2.42 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 14.57(1)(001), 2.816(0.4)(043), 6.28(0.4)(112,021),6.95(0.4)(200), 2.452(0.3)(440), 2.506(0.3)(152,243), 3.104(0.3)(402), 3.469(0.3)(312,400), |
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Physical Properties of Bleasdaleite
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| Cleavage: |
{001} Very Good |
| Color: |
Honey brown, Dark brown. |
| Diaphaneity: |
Translucent |
| Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
| Habit: |
Scaly - Morphology like fish scales. |
| Hardness: |
2 - Gypsum |
| Luster: |
Resinous |
| Streak: |
pale brown |
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Optical Properties of Bleasdaleite
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| Gladstone-Dale: |
CI calc= -0.354 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.305,KC= 0.2252
Ncalc = 1.55 |
| Optical Data: |
Biaxial (-), a=1.718, b=1.748, g=1.748, bire=0.0300 |
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Calculated Properties of Bleasdaleite
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| Electron Density: |
Bulk Density (Electron Density)=2.38 gm/cc
note: Specific Gravity of Bleasdaleite =2.42 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0007479556
Boson Index = 0.9992520444 |
| Photoelectric: |
PEBleasdaleite = 41.75 barns/electron
U=PEBleasdaleite x rElectron Density= 99.27 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bleasdaleite is Not Radioactive |
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Bleasdaleite Classification
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| Dana Class: |
42.07.15.02 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.07)where (AB)5 (XO4)3 Zq � x(H2O) |
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(42.07.15)Richelsdorfite Group |
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42.07.15.01 Richelsdorfite Ca2Cu5Sb(AsO4)4Cl(OH)6•6(H2O) C 2/m 2/m |
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42.07.15.02 Bleasdaleite! (Ca,Fe)2Cu5(Bi,Cu)(PO4)4(H2O,OH,Cl)13 C 2/m 2/m |
| Strunz Class: |
08.DK.25 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DK -With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1 |
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08.DK.25 Richelsdorfite Ca2Cu5Sb(AsO4)4Cl(OH)6•6(H2O) C 2/m 2/m |
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08.DK.25 Bleasdaleite! (Ca,Fe)2Cu5(Bi,Cu)(PO4)4(H2O,OH,Cl)13 C 2/m 2/m |
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Other Bleasdaleite Information
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| References: |
NAME( MinRec, v 32, p 210) PHYS. PROP.(CanMin, Vol 38) OPTIC PROP.(MinRec, v 32, p 210) |
| See Also: |
Links to other databases for Bleasdaleite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Print or Cut-and-Paste your Bleasdaleite Specimen Label here :
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Bleasdaleite
(Ca,Fe+++)2Cu5(Bi,Cu)(PO4 )4(H2O,OH,Cl)13
Dana No: 42.07.15.02 Strunz No: 08.DK.25
Locality:
Notes:
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