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Bushmakinite

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Formula:
Pb
 
2
Al(PO
 
4
)(VO
 
4
)(OH)
System:MonoclinicColour:bright yellow
Lustre:Adamantine, VitreousHardness:3 - 3½
Member of:Brackebuschite Group
Name:For A. F. Bushmakin (1947-1999), russian mineralogist
This page provides mineralogical data about Bushmakinite.

Classification of Bushmakinite

IMA status:Approved 2001
Strunz 8th edition ID:7/B.24-25
Nickel-Strunz 10th (pending) edition ID:8.BG.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
G : With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1
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Type Occurrence of Bushmakinite

Type Locality:Severnaya Mine, Berezovskoe Au Deposit (Berezovsk Mines), Berezovskii (Berezovskii Zavod), Ekaterinburg (Sverdlovsk), Ekaterinburgskaya (Sverdlovskaya) Oblast', Middle Urals, Urals Region, Russia
General Appearance of Type Material:lamellar crystal up to 0.3 mm in size

Physical Properties of Bushmakinite

Lustre:Adamantine, Vitreous
Diaphaneity (Transparency):Translucent
Colour:bright yellow
Streak:pale yellow
Hardness (Mohs):3 - 3½
Hardness Data:Measured
Tenacity:Brittle
Cleavage:Perfect
perfect
Fracture:Irregular/Uneven, Step-Like
Density (calculated):6.22 g/cm3

Crystallography of Bushmakinite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/m {P1 1 21/m} {P21/m} {P1 21/m 1}
Cell Parameters:a = 7.734Å, b = 5.814Å, c = 8.69Å
β = 112.1°
Ratio:a:b:c = 1.33 : 1 : 1.495
Unit Cell Volume:V 362 ų
Z:2

Optical Data of Bushmakinite

Type:Biaxial (-)
RI values: nα = 1.990 nβ = 2.030 nγ = 2.060
2V:Calculated: 80°
Maximum Birefringence:δ = 0.070

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High

Chemical Properties of Bushmakinite

Formula:
Pb
 
2
Al(PO
 
4
)(VO
 
4
)(OH)
Essential elements:Al, H, O, P, Pb, V
All elements listed in formula:Al, H, O, P, Pb, V

Relationship of Bushmakinite to other Species

Member of:Brackebuschite Group
Other Members of Group:

- +
Arsenbrackebuschite
Pb
 
2
(Fe
3+
 
,Zn
2+
 
)(AsO
 
4
)
 
2
(OH,H
 
2
O)
Arsentsumebite
Pb
 
2
Cu(AsO
 
4
)(SO
 
4
)(OH)
Bearthite
Ca
 
2
Al(PO
 
4
)
 
2
(OH)
Brackebuschite
Pb
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
Calderónite
Pb
 
2
Fe
3+
 
(VO
 
4
)
 
2
(OH)
Feinglosite
Pb
 
2
(Zn,Fe
2+
 
)(AsO
 
4
)(SO
 
4
)(OH)
Gamagarite
Ba
 
2
(Fe
3+
 
,Mn
3+
 
)(VO
 
4
)
 
2
(OH)
Goedkenite
(Sr,Ca)
 
2
Al(PO
 
4
)
 
2
(OH)
Tokyoite
Ba
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
Tsumebite
Pb
 
2
Cu(PO
 
4
)(SO
 
4
)(OH)
Related Minerals - Nickel-Strunz Grouping):

- +
8.BG.05Arsentsumebite
Pb
 
2
Cu(AsO
 
4
)(SO
 
4
)(OH)
8.BG.05Bearthite
Ca
 
2
Al(PO
 
4
)
 
2
(OH)
8.BG.05Brackebuschite
Pb
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
8.BG.05Gamagarite
Ba
 
2
(Fe
3+
 
,Mn
3+
 
)(VO
 
4
)
 
2
(OH)
8.BG.05Goedkenite
(Sr,Ca)
 
2
Al(PO
 
4
)
 
2
(OH)
8.BG.05UM1994-19-PO:CuHMoPb
Pb
 
2
Cu(PO
 
4
)(MoO
 
4
,AsO
 
4
,CrO
 
4
,GaO
 
4
)(OH)
8.BG.05Tsumebite
Pb
 
2
Cu(PO
 
4
)(SO
 
4
)(OH)
8.BG.05Arsenbrackebuschite
Pb
 
2
(Fe
3+
 
,Zn
2+
 
)(AsO
 
4
)
 
2
(OH,H
 
2
O)
8.BG.05Feinglosite
Pb
 
2
(Zn,Fe
2+
 
)(AsO
 
4
)(SO
 
4
)(OH)
8.BG.05Tokyoite
Ba
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
8.BG.05Calderónite
Pb
 
2
Fe
3+
 
(VO
 
4
)
 
2
(OH)
8.BG.10Mélonjosephite
CaFe
2+
 
Fe
3+
 
(PO
 
4
)
 
2
(OH)
8.BG.15Tancoite
LiNa
 
2
Al(PO
 
4
)(HPO
 
4
)(OH)

Other Names for Bushmakinite

Synonyms:
IMA2001-031
Other Languages:
German:Bushmakinit
Spanish:Bushmakinita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Bushmakinite

Reference List:

- +
Pekov, I.V., D.A. Kleimenov, N.V. Chukanov, O.V. Yakubovich, V. Massa, D.I. Belakovskiy & L.A. Pautov (2002): Bushmakinite Pb2Al(PO4)(VO4)(OH), a new mineral of the brackebuschite group from the oxidized zone of the Berezovskoye gold deposit, the Middle Urals.- Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 132(2) [131(2)??], 62-71.

Internet Links for Bushmakinite

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    • Localities for Bushmakinite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    France
     
    • Midi-Pyrénées
      • Tarn
        • Castelnau-de-Brassac
          • Fumade
    		LHEUR, C. & MEISSER, N. (2010): Découverte de minéraux rares à Castelnau-de-Brassac (Tarn), Le Règne Minéral, 91, 46.
    Russia
     
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Ekaterinburg (Sverdlovsk)
            • Berezovskii (Berezovskii Zavod)
              • Berezovskoe Au Deposit (Berezovsk Mines)
    		American Mineralogist, Volume 88, pages 475–479, 2003
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