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Slavkovite

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About SlavkoviteHide

Horní Slavkov, Czech Republic
Formula:
Cu13(AsO4)6(AsO3OH)4·23H2O
Colour:
Pale green, colourless with a greenish tint, light blue, blue-green
Lustre:
Vitreous
Hardness:
3½ - 4
Specific Gravity:
3.05
Crystal System:
Triclinic
Name:
It was named after its first occurrence in the well-known Sn–W ore district at Krásno, near Horní Slavkov, Czech Republic.
Originally described from Horní Slavkov as UNK2 in Sejkora et al. (2006), and from Jáchymov as "Cu-AsO4-H2O (3)" in Ondruš et al. (1997).


Classification of SlavkoviteHide

Approved
Approval Year:
2004
First Published:
2010

Physical Properties of SlavkoviteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
Pale green, colourless with a greenish tint, light blue, blue-green
Comment:
Pale green in rosettes or colourless in individual crystals; light blue to blue-green crystalline coatings
Streak:
White
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Very brittle
Cleavage:
Perfect
Perfect on {011} and good on {010}
Fracture:
Irregular/Uneven
Density:
3.05(1) g/cm3 (Measured)    3.05 g/cm3 (Calculated)

Optical Data of SlavkoviteHide

Type:
Biaxial (+)
RI values:
nα = 1.591(2) nβ = 1.620(2) nγ = 1.701(2)
2V:
Calculated: 64°
Birefringence:
0.11
Max Birefringence:
δ = 0.110
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Optical Extinction:
The elongation on the (011) plane is negative, with an extinction angle 27°; on the (010) plane, it is positive with an extinction angle 17°.
Pleochroism:
Visible
Comments:
X = grayish (light gray to colourless), Y = very light greenish gray, Z = light green.
Comments:
It was not possible to find the exact position of the individual optical orientations relative to the indices of refraction.

Chemical Properties of SlavkoviteHide

Formula:
Cu13(AsO4)6(AsO3OH)4·23H2O
IMA Formula:
Cu13(AsO4)6(AsO3OH)4 · 23H2O

Crystallography of SlavkoviteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.408 Å, b = 14.491 Å, c = 16.505 Å
α = 102.87°, β = 101.32°, γ = 97.13°
Ratio:
a:b:c = 0.442 : 1 : 1.139
Unit Cell V:
1442 ų
Z:
1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
15.70(3)
11.98(100)
6.99(3)
5.99(6)
3.448(5)
2.967(5)
2.895(3)
2.400(4)
Comments:
From type description.

Type Occurrence of SlavkoviteHide

General Appearance of Type Material:
Coatings formed by rosettes up to 1 mm across or individual spherical aggregates up to 5 mm across. Individual acicular to lath-like crystals up to 1 mm long and 0.05 mm thick.
Place of Conservation of Type Material:
National Museum, Prague, Czech Republic (catalogue number P1N 83.038).
Geological Setting of Type Material:
Weathering product of primary tennantite and chalcopyrite.
Associated Minerals at Type Locality:
Reference:
Sejkora, J., Plášil, J., Ondruš, P., Veselovský, F., Císarová, I., Hloušek, J. (2010) Slavkovite, Cu13(AsO4)(AsO3OH)4•23H2O, a new mineral species from Horní Slavkov and Jáchymov, Czech Republic: description and crystal-structure determination. Canadian Mineralogist: 48: 1157-1170.

Synonyms of SlavkoviteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Lavendulan2 photos of Slavkovite associated with Lavendulan on mindat.org.

Other InformationHide

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

References for SlavkoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ondruš, P., Veselovský, F., Skála, R., Císařová, I., Hloušek, J., Frýda, J., Vavřín, I., Čejka, J. & Gabašová, A. (1997) New naturally occurring phases of secondary origin from Jáchymov (Joachimsthal). Journal of the Czech Geological Society: 42(4): 77-108.
Sejkora, J., Škoda, R., Ondruš, P. (2006) New naturally occurring mineral phases from the Krásno - Horní Slavkov area, western Bohemia, Czech Republic. Journal of the Czech Geological Society: 51: 159-187.
Hyršl, J. and Korbel, P. (2008) Tschechien & Slowakei. Edition Schloss Freudenstein, Bode Verlag, Haltern, 576 pp. (in German) [photos on p. 57]
Sejkora, J., Plášil, J., Ondruš, P., Veselovský, F., Císarová, I., Hloušek, J. (2010) Slavkovite, Cu13(AsO4)(AsO3OH)4•23H2O, a new mineral species from Horní Slavkov and Jáchymov, Czech Republic: description and crystal-structure determination. Canadian Mineralogist: 48: 1157-1170.

Internet Links for SlavkoviteHide

Localities for SlavkoviteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Czech Republic
 
  • Karlovy Vary Region
    • Horní Slavkov (Schlaggenwald)
IMA Website
http://www.mindat.org/forum.php?read,104,190010,190298#msg-190298
    • Krušné Hory Mts (Erzgebirge)
      • Jáchymov District (St Joachimsthal)
        • Jáchymov (St Joachimsthal)
          • Svornost Mine (Einigkeit Mine)
            • Geschieber vein
J. SEJKORA, J. PLÁŠIL, P. ONDRUŠ, F. VESELOVSKÝ, I. CÍSAROVÁ & J. HLOUŠEK (2010): Slavkovite, Cu13(AsO4)(AsO3OH)4•23H2O – a new mineral from horní Slavkov and Jáchymov, Czech Republic – description and crystal-structure determination. Can. Mineral. (in press as of July 2010); Tvrdý, J. & Plášil, J. (2010): Jáchymov - Reiche Erzlagerstätte und Radonbad im böhmischen Westerzgebirge. Aufschluss 61, 277-292.
  • Ústí Region
    • Krušné Hory Mts (Erzgebirge)
      • Krupka (Graupen)
Sejkora, J., Škácha, P., Dvořák, Z. and Muzikant, P. (2015): Slavkovite from Preisselberg, the Krupka ore district (Czech Republic) and its mineral association. Bull. mineralog.-petrolog. Odd. Nár. Muz. (Praha) 23, 1-18 (in Czech with English abstract).
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium; Lavreotiki Municipality)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
          • Kamariza Mines (Kamareza Mines)
Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
Rieck, B., Kolitsch, U., Voudouris, P., Giester, G. and Tzeferis, P. (2018): Weitere Neufunde aus Lavrion, Griechenland. Mineralien-Welt 29 (5), 32-77 (in German).
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Yakutia)
      • Verkhoyansk
        • Yana River Basin
          • Yana-Adycha Region
            • Arga-Ynnakh-Khaya granite Massif
Yakovenchuk, V.N., Pakhomovsky, Ya.A., Konoplyova, N.G., Panikorovskii, T.L., Mikhailova, Yu.A., Bocharov, V.N., Krivovichev, S.V., Ivanyuk, G.Yu. (2017): Epifanovite, NaCaCu5(PO4)4[AsO2(OH)2]·7H2O a new mineral from the Këster deposit (Sakha-Yakutia, Russia). Zapiski RMO, 146(3), 30-38.
Mineral and/or Locality  
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