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Vladimirite

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Ightem Mine (Irhtem Mine), Ightem, Bou Azer District (Bou Azzer District), Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco
© jm.CLAUDE

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Formula:
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 5H
 
2
O
System:MonoclinicColour:Usually colorless to ...
Hardness:3½
Name:Named by E. I. Nefedov in 1953 after its discovery locality, Vladimirskoe deposit, Khovu-Aksy, Tuva Republic, Russia.
This page provides mineralogical data about Vladimirite.

Classification of Vladimirite

IMA status:Approved
Strunz 8th edition ID:7/C.24-40
Nickel-Strunz 10th (pending) edition ID:8.CJ.25

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
J : With only large cations
Dana 8th edition ID:39.2.2.1

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
2 : (AB)5[HXO4]2[XO4]2.xH2O
Hey's CIM Ref.:20.2.10

20 : Arsenates (also arsenates with phosphate, but without other anions)
2 : Arsenates of Be, Mg, Ca or Ba
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Type Occurrence of Vladimirite

Co-type Localities:Khovu-Aksy Ni-Co Deposit, Tuva Republic, Eastern-Siberian Region, Russia
Vladimirovskoye Co Deposit, Gornyi Altai, Altaiskii Krai, Western-Siberian Region, Russia
Year of Discovery:1953

Physical Properties of Vladimirite

Lustre:Sub-Vitreous, Silky, Pearly
Diaphaneity (Transparency):Transparent, Translucent
Colour:Usually colorless to white, also pale rose
Streak:White
Hardness (Mohs):3½
Tenacity:Brittle
Density (measured):3.12 - 3.15 g/cm3
Density (calculated):3.17 g/cm3

Crystallography of Vladimirite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b {P1 1 21/b} {P21/c} {P1 21/c 1} {P21/a}
Space Group Setting:P21/c
Cell Parameters:a = 5.81Å, b = 10.19Å, c = 22.7Å
β = 97.32°
Ratio:a:b:c = 0.57 : 1 : 2.228
Unit Cell Volume:V 1,332.98 ų (Calculated from Unit Cell)
Z:3
Morphology:Acicular to bladed crystals in open radial clusters.
X-Ray Powder Diffraction:
d-spacingIntensity
5.09 (40)
4.80 (40)
4.15 (80)
4.00 (80)
3.28 (80)
3.20 (40)
3.04 (60)
2.79 (100)
Comments:ICDD 17-162

Optical Data of Vladimirite

Type:Biaxial (-)
RI values: nα = 1.650 - 1.651 nβ = 1.654 - 1.656 nγ = 1.656 - 1.661
2V:Measured: 70° , Calculated: 76° to 84°
Birefringence:0.008
Maximum Birefringence:δ = 0.006 - 0.010

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v strong
Optical Extinction:Z ^ c = 37°
Pleochroism:Non-pleochroic

Chemical Properties of Vladimirite

Formula:
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 5H
 
2
O
Essential elements:As, Ca, H, O
All elements listed in formula:As, Ca, H, O

Relationship of Vladimirite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.CJ.05Stercorite
Na(NH
 
4
)HPO
 
4
 · 4H
 
2
O
8.CJ.10Mundrabillaite
(NH
 
4
)
 
2
Ca(HPO
 
4
)
 
2
 · H
 
2
O
8.CJ.10Swaknoite
(NH
 
4
)
 
2
Ca(HPO
 
4
)
 
2
 · H
 
2
O
8.CJ.15Nabaphite
NaBaPO
 
4
 · 9H
 
2
O
8.CJ.15Nastrophite
Na(Sr,Ba)PO
 
4
 · 9H
 
2
O
8.CJ.20Haidingerite
CaHAsO
 
4
 · H
 
2
O
8.CJ.30Ferrarisite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
2
O
8.CJ.35Machatschkiite
(Ca,Na)
 
6
(AsO
 
4
)(HAsO
 
4
)
 
3
(PO
 
4
,SO
 
4
) · 15H
 
2
O
8.CJ.40Phaunouxite
Ca
 
3
(AsO
 
4
)
 
2
 · 11H
 
2
O
8.CJ.40Rauenthalite
Ca
 
3
(AsO
 
4
)
 
2
 · 10H
 
2
O
8.CJ.45Brockite
(Ca,Th,Ce)PO
 
4
 · H
 
2
O
8.CJ.45Grayite
(Th,Pb,Ca)(PO
 
4
) · H
 
2
O
8.CJ.45Rhabdophane-(Ce)
(Ce,La)(PO
 
4
) · H
 
2
O
8.CJ.45Rhabdophane-(La)
(La,Ce)(PO
 
4
) · H
 
2
O
8.CJ.45Rhabdophane-(Nd)
(Nd,Ce,La)(PO
 
4
) · H
 
2
O
8.CJ.45Tristramite
(Ca,U,Fe)(PO
 
4
,SO
 
4
) · 2H
 
2
O
8.CJ.45UM1997-20-AsO:HU
U
4+
 
(HAsO
 
4
)
 
2
 · 4H
 
2
O
8.CJ.45Smirnovskite
ThCa(PO
 
4
)
 
2
 · nH
 
2
O
8.CJ.50Ardealite
Ca
 
2
(HPO
 
4
)(SO
 
4
) · 4H
 
2
O
8.CJ.50Brushite
Ca(HPO
 
4
) · 2H
 
2
O
8.CJ.50Churchite-(Y)
Y(PO
 
4
) · 2H
 
2
O
8.CJ.50Pharmacolite
Ca(HAsO
 
4
) · 2H
 
2
O
8.CJ.50Churchite-(Nd)
Nd(PO
 
4
) · 2H
 
2
O
8.CJ.55Mcnearite
NaCa
 
5
(AsO
 
4
)(HAsO
 
4
)
 
4
 · 4H
 
2
O
8.CJ.60Dorfmanite
Na
 
2
HPO
 
4
 · 2H
 
2
O
8.CJ.65Sincosite
Ca(VO)
 
2
(PO
 
4
)
 
2
 · 5H
 
2
O
8.CJ.65Bariosincosite
Ba(VO)
 
2
(PO
 
4
)
 
2
 · 4H
 
2
O
8.CJ.70Catalanoite
Na
 
2
(HPO
 
4
) · 8H
 
2
O
8.CJ.75Guérinite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
2
O
8.CJ.85Ningyoite
CaU(PO
 
4
)
 
2
 · 1-2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
20.2.1Bearsite
Be
 
2
(AsO
 
4
)(OH) · 4H
 
2
O
20.2.2Brassite
Mg(HAsO
 
4
) · 4H
 
2
O
20.2.3Rösslerite
Mg(HAsO
 
4
) · 7H
 
2
O
20.2.4Hörnesite
Mg
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
20.2.5Weilite
Ca(HAsO
 
4
)
20.2.6Johnbaumite
Ca
 
5
(AsO
 
4
)
 
3
OH
20.2.7Haidingerite
CaHAsO
 
4
 · H
 
2
O
20.2.8Pharmacolite
Ca(HAsO
 
4
) · 2H
 
2
O
20.2.9Sainfeldite
CaCa
 
2
Ca
 
2
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
20.2.11Guérinite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
2
O
20.2.12Ferrarisite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
2
O
20.2.13Rauenthalite
Ca
 
3
(AsO
 
4
)
 
2
 · 10H
 
2
O
20.2.14Phaunouxite
Ca
 
3
(AsO
 
4
)
 
2
 · 11H
 
2
O
20.2.15Mcnearite
NaCa
 
5
(AsO
 
4
)(HAsO
 
4
)
 
4
 · 4H
 
2
O
20.2.16Bergslagite
CaBeAsO
 
4
(OH)
20.2.17Adelite
CaMg(AsO
 
4
)(OH)
20.2.18Talmessite
Ca
 
2
Mg(AsO
 
4
)
 
2
 · 2H
 
2
O
20.2.19Irhtemite
Ca
 
4
Mg(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
20.2.20Camgasite
CaMg(AsO
 
4
)(OH) · 5H
 
2
O
20.2.21Picropharmacolite
Ca
 
4
Mg(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 11H
 
2
O
20.2.22Bariopharmacosiderite
Ba
 
0.5
Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 5H
 
2
O

Other Names for Vladimirite

Other Languages:
German:Vladimirit
Russian:Владимирит
Spanish:Vladimirita

Other Information

Fluorescence in UV light:Not fluorescent
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 Vladimirite

Reference List:

- +
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1953): 82: 311-317.

American Mineralogist (1965): 50:813.

Zeitschrift für Kristallographie (1981): 157: 296, structure.

Bulletin de la Société française de Minéralogie et de Cristallographie: 87: 169-211.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 99: 362-364.

Internet Links for Vladimirite

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    • External Links:
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  • Look for Vladimirite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Vladimirite details from Handbook of Mineralogy (PDF)
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    • Specimens:The following Vladimirite specimens are currently listed for sale on minfind.com.
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    • Localities for Vladimirite

    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.
    Germany
     
    • Hesse
      • Richelsdorf District
        • Bauhaus
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Süss
          • Richelsdorf Smelter
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1992
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Plaka
            • Plaka Mines
    		Branko Rieck
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Aït Ahmane
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Ightem
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Méchoui
    		JP Barral collection
    Russia
     
    • Eastern-Siberian Region
      • Tuva Republic
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Western-Siberian Region
      • Altaiskii Krai
        • Gornyi Altai
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    USA
     
    • Michigan
      • Keweenaw Co.
        • Mohawk
    		[Mineralogical Record - Vol 23 No. 2]
    • Nevada
      • Nye Co.
        • Manhattan District
          • Manhattan
    		Tony Nikischer specimen and analysis
    Mineral and/or Locality
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