| |
 |
Bushmakinite Mineral Data
|
|
|
General Bushmakinite Information
|
 Chemical Formula: |
Pb2Al(PO4)(VO4)(OH) |
| Composition: |
Molecular Weight = 667.89 gm |
| |
Aluminum 3.11 % Al 5.88 % Al2O3 |
| |
Vanadium 5.64 % V 10.08 % V2O5 |
| |
Zinc 0.10 % Zn 0.12 % ZnO |
| |
Chromium 1.09 % Cr 2.10 % CrO3 |
| |
Copper 2.00 % Cu 2.50 % CuO |
| |
Phosphorus 4.64 % P 10.63 % P2O5 |
| |
Hydrogen 0.15 % H 1.38 % H2O |
| |
Lead 62.67 % Pb 67.51 % PbO |
| |
Sulfur 0.05 % S 0.12 % SO3 |
| |
Oxygen 20.55 % O |
| |
______ ______ |
| |
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 |
| |
Bushmakinite Image |
|
Images:
|
|
Bushmakinite Crystallography
|
| 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),
|
| |
Physical Properties of Bushmakinite
|
| 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 |
| |
Optical Properties of Bushmakinite
|
| 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. |
| |
Calculated Properties of Bushmakinite
|
| Electron Density: |
Bulk Density (Electron Density)=5.27 gm/cc
note: Specific Gravity of Bushmakinite =6.13 gm/cc.
|
| 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.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bushmakinite is Not Radioactive |
| |
Bushmakinite Classification
|
| Dana Class: |
40.02.08.05 (40)Hydrated Phosphates, etc |
| |
(40.02)where A++ (B++)2 (XO4) � x(H2O) |
| |
(40.02.08)Brackebushite Group |
| |
40.02.08.01 Brackebuschite Pb2(Mn,Fe)(VO4)2(OH) P 21/m 2/m |
| |
40.02.08.02 Arsenbrackebuschite Pb2(Fe,Zn)(AsO4)2•(H2O) P 21/m 2/m |
| |
40.02.08.03 Feinglosite! Pb2(Zn,Fe)[(As,S)O4]2•(H2O) P 21,P 21/m Mono |
| |
40.02.08.04 Calderonite! Pb2Fe(VO4)2(OH) P 21/m 2/m |
| |
40.02.08.05 Bushmakinite! Pb2Al(PO4)(VO4)(OH) P 21/m 2/m |
| Strunz Class: |
08.BG.05 08 - PHOSPHATES, ARSENATES, VANADATES |
| |
08.B - Phosphates, etc. with Additional Anions, without H2O |
| |
08.BG -With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1 |
| |
08.BG.05 Arsenbrackebuschite Pb2(Fe,Zn)(AsO4)2•(H2O) P 21/m 2/m |
| |
08.BG.05 Bearthite Ca2Al(PO4)2(OH) P 21/m 2/m |
| |
08.BG.05 Arsentsumebite Pb2Cu(AsO4)(SO4)(OH) P 21/m 2/m |
| |
08.BG.05 Brackebuschite Pb2(Mn,Fe)(VO4)2(OH) P 21/m 2/m |
| |
08.BG.05 Feinglosite! Pb2(Zn,Fe)[(As,S)O4]2•(H2O) P 21,P 21/m Mono |
| |
08.BG.05 Gamagarite Ba2(Fe,Mn)(VO4)2(OH) P 21/m 2/m |
| |
08.BG.05 Goedkenite (Sr,Ca)2Al(PO4)2(OH) P 21/m 2/m |
| |
08.BG.05 Tsumebite Pb2Cu(PO4)(SO4)(OH) P 21/m 2/m |
| |
08.BG.05 Calderonite! Pb2Fe(VO4)2(OH) P 21/m 2/m |
| |
08.BG.05 Bushmakinite! Pb2Al(PO4)(VO4)(OH) P 21/m 2/m |
| |
08.BG.05 Tokyoite! Ba2Mn(VO4)2(OH) P 21/m 2/m |
| |
Other Bushmakinite Information
|
| 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
Search for Bushmakinite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Bushmakinite :
Ask about Bushmakinite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Espa�ol
Print or Cut-and-Paste your Bushmakinite Specimen Label here :
|
Bushmakinite
Pb2Al(PO4)(VO4)(OH)
Dana No: 40.02.08.05 Strunz No: 08.BG.05
Locality:
Notes:
|
|
| |
| |
|
| |
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.
