Kvačekite (original) (raw)
A valid IMA mineral species
Specific Gravity:
7.607 (Calculated)
Name:
Named after Milan Kvaček (13. 2. 1930 - 21. 5. 1993), a Czech mineralogist and the author of the first comprehensive descriptions of selenides from western Moravia. Milan Kvaček is the author of over sixty publications in the fields of mineralogy, chemistry and geochemistry. He also co-operated closely with Zdeněk Johan from BRGM (Orléans) on the description of six new selenides from the Bohemian Massif - bukovite, fischesserite, hakite, permingeatite, petrovicite and sabatierite.
The Se analogue of ullmannite. Unique combination of elements (at the upload time).
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:470991:2
fa51c8be-4c6c-497c-81bb-a11141ab7429
IMA Classification of KvačekiteHide
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Approved, Pending publication
Classification of KvačekiteHide
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2.EB.25
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Kvč | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of KvačekiteHide
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Comment:
in agreement with other members of the cobaltite group
Density:
7.607 g/cm3 (Calculated)
Optical Data of KvačekiteHide
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Reflectivity:
| Wavelength | R |
|---|---|
| 470nm | 54.9% |
| 546nm | 53.5% |
| 589nm | 52.6% |
| 650nm | 52.2% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 54.9%.
Colour in reflected light:
white with a faint yellowish shade
Pleochroism:
Non-pleochroic
Chemistry of KvačekiteHide
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Crystallography of KvačekiteHide
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Class (H-M):
23 - Tetartoidal
Cell Parameters:
a = 6.0901(1) Å
Unit Cell V:
225.88 ų (Calculated from Unit Cell)
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.046 Å | (11) |
| 2.724 Å | (100) |
| 2.487 Å | (71) |
| 1.863 Å | (39) |
| 1.689 Å | (16) |
| 1.628 Å | (29) |
| 1.522 Å | (7) |
| 1.329 Å | (13) |
Type Occurrence of KvačekiteHide
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General Appearance of Type Material:
anhedral grains, up to 15 μm in size
Place of Conservation of Type Material:
in the collections of the Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 19300 Praha 9, Czech Republic, catalogue number P1P 26/2023
Geological Setting of Type Material:
This uranium ore district is an example of shear zone-hosted, late Variscan and post-Variscan hydrothermal mineralisation.
Associated Minerals at Type Locality:
Related Minerals - Strunz-mindat GroupingHide
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| 2.EB. | Iridarsenite | (Ir,Ru)As2 | Mon. 2/m : _P_21/b |
|---|---|---|---|
| 2.EB. | Selenolaurite | RuSe2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB. | Andrieslombaardite | RhSbS | Iso. 23 : _P_213 |
| 2.EB. | Kanatzidisite | (SbBiS3)2Te2 | Mon. 2/m : _P_21/m |
| 2.EB.05a | Aurostibite | AuSb2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05b | Bambollaite | Cu(Se,Te)2 | Tet. |
| 2.EB.05a | Cattierite | CoS2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Erlichmanite | OsS2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Fukuchilite | Cu3FeS8 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Geversite | PtSb2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Hauerite | MnS2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Insizwaite | Pt(Bi,Sb)2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Krut'aite | CuSe2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Laurite | RuS2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Penroseite | (Ni,Co,Cu)Se2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Pyrite | FeS2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Sperrylite | PtAs2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Trogtalite | CoSe2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Vaesite | NiS2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Villamanínite | (Cu,Ni,Co,Fe)S2 | Tric. |
| 2.EB.05a | Dzharkenite | FeSe2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a | Gaotaiite | Ir3Te8 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.05a v | Cayeuxite | ||
| 2.EB.10b | Alloclasite | Co1-xFexAsS | Mon. 2 : _P_21 |
| 2.EB.10d | Costibite | CoSbS | Orth. m _m_2 : P m _n_21 |
| 2.EB.10a | Ferroselite | FeSe2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.10a | Frohbergite | FeTe2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.10c | Glaucodot | (Co0.50Fe0.50)AsS | Orth. m _m_2 : P m _n_21 |
| 2.EB.10a | Kullerudite | NiSe2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.10a | Marcasite | FeS2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.10a | Mattagamite | CoTe2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.10e | Paracostibite | CoSbS | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 2.EB.10e | Pararammelsbergite | NiAs2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 2.EB.10f | Oenite | CoSbAs | Orth. |
| 2.EB.10a | Petříčekite | CuSe2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.15a | Anduoite | (Ru,Os)As2 | Orth. |
| 2.EB.15a | Clinosafflorite | CoAs2 | Mon. 2/m : _P_21/m |
| 2.EB.15a | Löllingite | FeAs2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.15a | Nisbite | NiSb2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.15a | Omeiite | (Os,Ru)As2 | Orth. |
| 2.EB.15c | Paxite | CuAs2 | Mon. 2/m : _P_21/b |
| 2.EB.15a | Rammelsbergite | NiAs2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.15a | Safflorite | (Co,Ni,Fe)As2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 2.EB.15b | Seinäjokite | FeSb2 | Orth. |
| 2.EB.20 | Arsenopyrite | FeAsS | Mon. 2/m : _P_21/b |
| 2.EB.20 | Gudmundite | FeSbS | Mon. 2/m : _P_21/b |
| 2.EB.20 | Osarsite | (Os,Ru)AsS | Mon. |
| 2.EB.20 | Ruarsite | (Ru,Os)AsS | Mon. |
| 2.EB.25 va | Antimony-bearing Gersdorffite | Ni(As,Sb)S | |
| 2.EB.25 | Cobaltite | CoAsS | Orth. m _m_2 : P c _a_21 |
| 2.EB.25 | Gersdorffite | NiAsS | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.25 | Hollingworthite | (Rh,Pt,Pd)AsS | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.25 | Irarsite | (Ir,Ru,Rh,Pt)AsS | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.25 | Jolliffeite | NiAsSe | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.25 | Krutovite | NiAs2 | Iso. 23 : _P_213 |
| 2.EB.25 | Maslovite | PtBiTe | Iso. 23 : _P_213 |
| 2.EB.25 | Michenerite | PdBiTe | Iso. 23 : _P_213 |
| 2.EB.25 | Padmaite | PdBiSe | Iso. 432 |
| 2.EB.25 | Platarsite | Pt(As,S)2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.25 | Testibiopalladite | PdSbTe | Iso. |
| 2.EB.25 | Tolovkite | IrSbS | Iso. |
| 2.EB.25 | Ullmannite | NiSbS | Iso. 23 : _P_213 |
| 2.EB.25 | Willyamite | CoSbS | |
| 2.EB.25 | Changchengite | IrBiS | Iso. 23 : _P_213 |
| 2.EB.25 | Mayingite | IrBiTe | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.25 | Kalungaite | PdAsSe | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.25 | Milotaite | PdSbSe | Iso. 23 : _P_213 |
| 2.EB.25 | Paragersdorffite | Ni(As,S)2 | Iso. m_3(2/m_3) : P _a_3 |
| 2.EB.25 | Orthogersdorffite | NiAsS | Orth. m _m_2 : P c _a_21 |
| 2.EB.30 | Urvantsevite | Pd(Bi,Pb)2 | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_4/m m m |
| 2.EB.35 | Rheniite | ReS2 | Tric. 1 : _P_1 |
Other InformationHide
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Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for KvačekiteHide
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References for KvačekiteHide
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Reference List:
Pauliš, Petr, Dolníček, Zdeněk, Sejkora, Jiří, Pour, Ondrej, Laufek, Frantisek, Ulmanova, Jana, Vymazalova, Anna (2024) Kvačekite, NiSbSe, a new selenide mineral from Bukov, Czech Republic. Mineralogical Magazine, 1-24 doi:10.1180/mgm.2024.32
Localities for KvačekiteHide
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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
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
| Czech Republic (TL) | |
|---|---|
| Vysočina Region Žďár nad Sázavou District Rožná Rožná deposit ⓘ Bukov Mine (TL) | Pauliš et al. (2024) |