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Bushmakinite Mineral Data
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General Bushmakinite Information
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 Chemical Formula: |
Pb2Al(PO4)(VO4)(OH) |
| Composition: |
Molecular Weight = 667.89 gm |
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Aluminum 3.11 % Al 5.88 % Al2O3 |
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Vanadium 5.64 % V 10.08 % V2O5 |
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Zinc 0.10 % Zn 0.12 % ZnO |
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Chromium 1.09 % Cr 2.10 % CrO3 |
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Copper 2.00 % Cu 2.50 % CuO |
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Phosphorus 4.64 % P 10.63 % P2O5 |
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Hydrogen 0.15 % H 1.38 % H2O |
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Lead 62.67 % Pb 67.51 % PbO |
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Sulfur 0.05 % S 0.12 % SO3 |
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Oxygen 20.55 % O |
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______ ______ |
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100.00 % 100.30 % = TOTAL OXIDE |
| Empirical Formula: |
Pb2.02Al0.77Cu0.21Zn0.01(PO4)(VO4)0.74(CrO4)0.14SO40.01(OH)1.02 |
| Environment: |
Oxidation of galena and tetrahedrite in a quartz vein. (brackebuschite group; structure) |
| IMA Status: |
Approved IMA 2002, Dana # Added |
| Locality: |
Berezovskoye gold deposit, middle Ural Mountains, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Anatolly F. Bushmakin (1947-1999), in recognition of his work on the Berezovskoye deposit. |
| Synonym: |
IMA2001-031 |
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Bushmakinite Image |
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Images:
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Bushmakinite Crystallography
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| Axial Ratios: |
a:b:c =1.3302:1:1.4946 |
| Cell Dimensions: |
a = 7.734, b = 5.814, c = 8.69, Z = 2; beta = 112.1° V = 362.04 Den(Calc)= 6.13 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.21(1)(211), 4.68(0.8)(011), 2.91(0.7)(212,020,103),2.71(0.7)(021,122), 2.05(0.5)(123,114), 3.57(0.5)(111,200), 2.27(0.4),
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Physical Properties of Bushmakinite
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| Cleavage: |
{001} Perfect, {hk0} Distinct, {hk0} Distinct |
| Color: |
Bright yellow. |
| Diaphaneity: |
Translucent |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Habit: |
Lamellar - Thin laminae producing a lamellar structure. |
| Hardness: |
3-3.5 - Calcite-Copper Penny |
| Luster: |
Vitreous (Glassy) |
| Streak: |
yellowish |
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Optical Properties of Bushmakinite
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| Gladstone-Dale: |
CI calc= 0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1675,KC= 0.172
Ncalc = 2.05 |
| Optical Data: |
Biaxial (-), a=1.99, b=2.03, g=2.06, bire=0.0700, 2V(Calc)=80, 2V(Meas)=large. Dispersion appreciable, r < v. |
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Calculated Properties of Bushmakinite
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| Electron Density: |
Bulk Density (Electron Density)=5.27 gm/cc
note: Specific Gravity of Bushmakinite =6.13 gm/cc.
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| Fermion Index: |
Fermion Index = 0.13
Boson Index = 0.87 |
| Photoelectric: |
PEBushmakinite =1,121.29 barns/electron
U=PEBushmakinite x rElectron Density=5,912.17 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bushmakinite is Not Radioactive |
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Bushmakinite Classification
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| Dana Class: |
40.02.08.05 (40)Hydrated Phosphates, etc |
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(40.02)where A++ (B++)2 (XO4) � x(H2O) |
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(40.02.08)Brackebushite Group |
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40.02.08.01 Brackebuschite Pb2(Mn,Fe)(VO4)2(OH) P 21/m 2/m |
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40.02.08.02 Arsenbrackebuschite Pb2(Fe,Zn)(AsO4)2•(H2O) P 21/m 2/m |
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40.02.08.03 Feinglosite! Pb2(Zn,Fe)[(As,S)O4]2•(H2O) P 21,P 21/m Mono |
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40.02.08.04 Calderonite! Pb2Fe(VO4)2(OH) P 21/m 2/m |
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40.02.08.05 Bushmakinite! Pb2Al(PO4)(VO4)(OH) P 21/m 2/m |
| Strunz Class: |
08.BG.05 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BG -With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1 |
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08.BG.05 Arsenbrackebuschite Pb2(Fe,Zn)(AsO4)2•(H2O) P 21/m 2/m |
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08.BG.05 Bearthite Ca2Al(PO4)2(OH) P 21/m 2/m |
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08.BG.05 Arsentsumebite Pb2Cu(AsO4)(SO4)(OH) P 21/m 2/m |
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08.BG.05 Brackebuschite Pb2(Mn,Fe)(VO4)2(OH) P 21/m 2/m |
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08.BG.05 Feinglosite! Pb2(Zn,Fe)[(As,S)O4]2•(H2O) P 21,P 21/m Mono |
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08.BG.05 Gamagarite Ba2(Fe,Mn)(VO4)2(OH) P 21/m 2/m |
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08.BG.05 Goedkenite (Sr,Ca)2Al(PO4)2(OH) P 21/m 2/m |
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08.BG.05 Tsumebite Pb2Cu(PO4)(SO4)(OH) P 21/m 2/m |
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08.BG.05 Calderonite! Pb2Fe(VO4)2(OH) P 21/m 2/m |
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08.BG.05 Bushmakinite! Pb2Al(PO4)(VO4)(OH) P 21/m 2/m |
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08.BG.05 Tokyoite! Ba2Mn(VO4)2(OH) P 21/m 2/m |
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Other Bushmakinite Information
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| References: |
NAME( AmMin, Vol 88, p 475) PHYS. PROP.(AmMin, Vol 88, p 475) OPTIC PROP.(AmMin, Vol 88, p 475) |
| See Also: |
Links to other databases for Bushmakinite :
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 Bushmakinite Specimen Label here :
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Bushmakinite
Pb2Al(PO4)(VO4)(OH)
Dana No: 40.02.08.05 Strunz No: 08.BG.05
Locality:
Notes:
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