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Bleasdaleite

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Big Photo

Lake Boga granite quarry, Lake Boga, Victoria, Australia
© John Haupt




Formula:
(Ca,Fe
3+
 
)
 
2
Cu
 
5
(Bi,Cu)(PO
 
4
)
 
4
(H
 
2
O,OH,Cl)
 
13
System:MonoclinicColour:Dark brown
Lustre:ResinousHardness:2
Name:
For Reverend John I. Bleasdale (1822-1884) for his promotion of mineralogy in Victoria, Australia.
Bleasdale came to Melbourne in 1851 where he worked as a Roman Catholic priest. Furthermore, he was a founder of the Microscopical Society and active member of various other organisations, including the Royal Society. His obituary says: "As an authority on wine and precious stones, he was admittedly without a rival in the southern hemisphere."
This page provides mineralogical data about Bleasdaleite.

Classification of Bleasdaleite

IMA status:Approved 1998
Strunz 8th edition ID:7/D.54-05
Nickel-Strunz 10th (pending) edition ID:8.DK.25

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
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Type Occurrence of Bleasdaleite

Type Locality:Lake Boga granite quarry, Lake Boga, Victoria, Australia
General Appearance of Type Material:Tiny dark brown platelets.

Physical Properties of Bleasdaleite

Lustre:Resinous
Colour:Dark brown
Streak:Pale brown
Hardness (Mohs):2

Crystallography of Bleasdaleite

Crystal System:Monoclinic
Morphology:Tiny platelets.
Comment:Structure unsolved; probably related to richelsdorfite.

Optical Data of Bleasdaleite

Type:Biaxial (-)
RI values: nα = 1.718 nβ = 1.748 nγ = 1.748
Maximum Birefringence:δ = 0.030

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

Chemical Properties of Bleasdaleite

Formula:
(Ca,Fe
3+
 
)
 
2
Cu
 
5
(Bi,Cu)(PO
 
4
)
 
4
(H
 
2
O,OH,Cl)
 
13
Essential elements:Bi, Ca, Cu, H, O, P
All elements listed in formula:Bi, Ca, Cl, Cu, Fe, H, O, P

Relationship of Bleasdaleite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DK.Richelsdorfite
Ca
 
2
Cu
 
5
Sb(AsO
 
4
)
 
4
(OH)
 
6
Cl · 6H
 
2
O
8.DK.10Bariopharmacosiderite
Ba
 
0.5
Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 5H
 
2
O
8.DK.10Pharmacosiderite
KFe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6-7H
 
2
O
8.DK.10Natropharmacosiderite
(Na,K)Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6-7H
 
2
O
8.DK.10Hydroniumpharmacosiderite
(H
 
3
O)Fe
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
8.DK.12Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6.5H
 
2
O
8.DK.12Natropharmacoalumite
NaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
8.DK.12Bariopharmacoalumite
BaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 4H
 
2
O
8.DK.15Burangaite
NaFe
2+
 
Al
 
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Dufrénite
Ca
 
0.5
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Natrodufrénite
NaFe
2+
 
(Fe
3+
 
,Al)
 
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Matioliite
NaMgAl
 
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.15Gayite
NaMn
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
8.DK.20Kidwellite
NaFe
3+
9
(PO
 
4
)
 
6
(OH)
 
11
 · 3H
 
2
O
8.DK.30Matulaite
(Fe
3+
 
,Al)Al
 
7
(PO
 
4
)
 
4
(PO
 
3
OH)
 
2
(OH)
 
8
(H
 
2
O)
 
8
 · 8H
 
2
O
8.DK.35Krasnovite
Ba(Al,Mg)(PO
 
4
,CO
 
3
)(OH)
 
2
 · H
 
2
O

Other Names for Bleasdaleite

Synonyms:
IMA1998-003IMA1998-003a
Other Languages:
German:Bleasdaleit
Spanish:Bleasdaleita

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 Bleasdaleite

Reference List:

- +
B. Birch, A. Pring and U. Kolitsch (1999): Bleasdaleite, (Ca,Fe3+)2Cu5(Bi,Cu)(PO4)4¬(H2O,OH,Cl)13, a new mineral from Lake Boga, Victoria, Australia. Australian Journal of Mineralogy 5, 69-75.

Internet Links for Bleasdaleite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Bleasdaleite

    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.
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    (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.
    Australia
     
    • Victoria
      • Lake Boga
    		B. Birch, A. Pring and U. Kolitsch (1999): Bleasdaleite, (Ca,Fe3+)2Cu5(Bi,Cu)(PO4)4¬(H2O,OH,Cl)13, a new mineral from Lake Boga, Victoria, Australia. Australian Journal of Mineralogy 5, 69-75; [AmMin 85:1321]
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 20th Jun 2011 08:22:32
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