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Švenekite

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Svornost Mine (Einigkeit Mine), Jáchymov (St Joachimsthal), Ostrov, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
© 2008, J. Weissman

Formula:
Ca(H
 
2
AsO
 
4
)
 
2
System:TriclinicColour:Colourless, white
Lustre:Vitreous
This page provides mineralogical data about Švenekite.

Classification of Švenekite

IMA status:Approved 1999
Nickel-Strunz 10th (pending) edition ID:8.AD.10

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
Dana 7th edition ID:37.1.6.1
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Type Occurrence of Švenekite

Type Locality:Jáchymov (St Joachimsthal), Ostrov, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Physical Properties of Švenekite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless, white
Streak:White

Crystallography of Švenekite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 8.5485Å, b = 7.6973Å, c = 5.7198Å
α = 92.59°, β = 109.87°, γ = 109.92°
Ratio:a:b:c = 1.111 : 1 : 0.743
Unit Cell Volume:V 332.44 ų

Optical Data of Švenekite

Type:Biaxial
RI values: nα = 1.602 nγ = 1.658
Maximum Birefringence:δ = 0.056

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

Chemical Properties of Švenekite

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

Relationship of Švenekite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.AD.05Nahpoite
Na
 
2
HPO
 
4
8.AD.10Monetite
CaHPO
 
4
8.AD.10Weilite
CaHAsO
 
4
8.AD.15Archerite
(K,NH
 
4
)[H
 
2
PO
 
4
]
8.AD.15Biphosphammite
(NH
 
4
,K)H
 
2
PO
 
4
8.AD.20Phosphammite
(NH
 
4
)
 
2
HPO
 
4
8.AD.25Buchwaldite
NaCaPO
 
4
8.AD.30Schultenite
PbHAsO
 
4
8.AD.35Chernovite-(Y)
YAsO
 
4
8.AD.35Dreyerite
BiVO
 
4
8.AD.35Wakefieldite-(Ce)
(Ce,Pb)VO
 
4
8.AD.35Wakefieldite-(Y)
YVO
 
4
8.AD.35Xenotime-(Y)
YPO
 
4
8.AD.35Pretulite
ScPO
 
4
8.AD.35Xenotime-(Yb)
YbPO
 
4
8.AD.40Pucherite
BiVO
 
4
8.AD.45Ximengite
BiPO
 
4
8.AD.50Gasparite-(Ce)
(Ce,REE)AsO
 
4
8.AD.50Monazite-(Ce)
(Ce,La,Nd,Th)PO
 
4
8.AD.50Monazite-(La)
(La,Ce,Nd)PO
 
4
8.AD.50Monazite-(Nd)
(Nd,La,Ce)PO
 
4
8.AD.50Rooseveltite
BiAsO
 
4
8.AD.50Cheralite
(Ca,Ce)(Th,Ce)[PO
 
4
]
 
2
8.AD.50Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
8.AD.55Tetrarooseveltite
Bi(AsO
 
4
)
8.AD.60Chursinite
(Hg-Hg)
 
0.5
Hg
2+
 
[AsO
 
4
]
8.AD.65Clinobisvanite
BiVO
 
4

Other Names for Švenekite

Synonyms:
IMA1999-007
Other Languages:
German:Švenekit

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 Švenekite

Reference List:Journal of the Czech Geological Society, Prague (2003): 48(3-4): 151.

Articles/Blogs about Švenekite

Internet Links for Švenekite

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    Localities for Švenekite

    (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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
    		[AmMin 84:687]
    Mineral and/or Locality
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