The mineral is named after Lazarus Ercker (1528 Annaberg-Buchholz, Germany – 1594 Prague, Czechia), the supreme Royal Bergmeister of the Kingdom of Bohemia (Minister of Mining) and the Master of Prague Mint, a renowned metallurgist, chemist, and mining specialist and the author of the Books on Assaying (original title Beschreibung Allerfürnemisten Mineralischen Ertzt und Berckwercksarten). This work – published in 1574 – was reissued 15 times, translated into four languages, and until the end of the 18th century was used as a principal textbook by all mining universities and Bergakademie in Europe.

Type Locality:

ⓘ Staročeské Lode, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic

Chemically similar to clino-oscarkempffite, izoklakeite, and staročeskéite. Co-described with also chemically (and stoichiometrically) similar holubite.

The structure of lazerckerite contains two Pb sites (Pb1 and Pb2) in bicapped trigonal prismatic coordination, 8 independent octahedral sites, and 13 distinct sulfur positions. Four of the octahedral sites are mixed (Sb,Bi) and (Bi,Sb) sites, one is a mixed (Ag,Bi) site, and one is a mixed (Sb,Pb) site. The new mineral belongs to the andorite branch of the lillianite homologous series with N=4 and is a new addition to the group of Sb–Bi mixed members of the series. Lazerckerite is defined as a lillianite homologue with the three following requirements: N=4, L (Ag (Bi3+, Sb3+) ↔ 2 Pb2+ substitution) ≈ 90 %–95 %, and approximately one-third of atom percentage of antimony is replaced by bismuth (Bi(Bi+Sb) ≈ 0.30–0.38).

Unique IdentifiersHide

Mindat ID:

470683

Long-form identifier:

mindat:1:1:470683:6

IMA Classification of LazerckeriteHide

IMA status:

Approved

IMA Formula:

Ag¹⁺_3.75Pb²⁺_4.50(Sb³⁺_7.75Bi³⁺₄)S^2-₂₄

Approval year:

2023

First published:

2024

Approval history:

IMA No. 2022-113

Type description reference:

Pažout, R.; Dušek, M.; Sejkora, J.; Plášil, J.; Ilinca, G.; Dolnı́ček, Z. (2024) Lazerckerite, Ag_3.75Pb_4.5(Sb_7.75Bi₄)S₂₄, from Kutná Hora, Czech Republic: a new Sb–Bi member of the andorite branch of the lillianite homologous series. European Journal of Mineralogy, 36 (4). p.641-656. doi:10.5194/ejm-36-641-2024

Classification of LazerckeriteHide

Strunz-mindat (2026):

2.JB.

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference for Standard
Lze	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 LazerckeriteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Lead grey

Streak:

Grey

Cleavage:

None Observed

Density:

5.920 g/cm³ (Calculated)

Optical Data of LazerckeriteHide

Anisotropism:

weak to moderate, with grey to bluish-grey rotation tints.

Bireflectance:

weak grey tints

Reflectivity:

Wavelength	R₁ (%)	R₂ (%)
470nm	36.1%	39.6%
546nm	34.1%	38.6%
589nm	33.7%	38.0%
650nm	33.1%	37.7%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 39.6%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

greyish white

Internal Reflections:

none observed

Pleochroism:

Weak

Comments:

grey tints

Chemistry of LazerckeriteHide

Mindat Formula:

Ag_3.75Pb_4.50(Sb_7.75Bi₄)S₂₄

Element Weights:

Element	% weight
Sb	24.283 %
Pb	23.994 %
Bi	21.511 %
S	19.803 %
Ag	10.409 %

Calculated from ideal end-member formula.

Elements listed:

Ag, Bi, Pb, S, Sb - search for minerals with similar chemistry

Crystallography of LazerckeriteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

P2₁/b

Setting:

P2₁/c

Cell Parameters:

a = 13.2083(9) Å, b = 19.4595(8) Å, c = 8.405(1) Å
β = 90.032(7)°

Ratio:

a:b:c = 0.679 : 1 : 0.432

Unit Cell V:

2,160.31 Å³ (Calculated from Unit Cell)

Twinning:

Twinned on (001).

Comment:

Pseudo-orthorhombic

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.408 Å	(32)
3.407 Å	(34)
3.353 Å	(100)
3.004 Å	(22)
3.003 Å	(25)
2.902 Å	(39)
2.901 Å	(37)
2.101 Å	(29)

Locality:

Staročeské Lode, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic

Reference:

Type Occurrence of LazerckeriteHide

Type Locality:

ⓘ Staročeské Lode, Kutná Hora, Kutná Hora District, Central Bohemian Region, Czech Republic

General Appearance of Type Material:

replacement rims of earlier Ag–Pb–Bi–Sb minerals and grain aggregates, growing together in aggregates up to 0.6×0.3 mm.

Place of Conservation of Type Material:

collections of the Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 19300 Prague 9, Czech Republic, catalogue number P1P 11/2022

Geological Setting of Type Material:

origin of the mineral is related to the later Bi mineralization, and we assume the mineral is a replacement product of earlier, Bi-richer lillianite homologues and galena that crystallized from originally low-temperature (ca. 100–250 °C) hydrothermal fluids in the tectonically opened fractures in yet earlier hydrothermal Fe–Cu–Zn–Sn–As base sulfide ore vein fillings

Associated Minerals at Type Locality:

Reference:

Synonyms of LazerckeriteHide

IMA2022-113

Other Language Names for LazerckeriteHide

Dutch:Lazerckeriet

German:Lazerckerit

Relationship of Lazerckerite to other SpeciesHide

Member of:

Lillianite Homologous Series Group

Other Members of Lillianite Homologous Series:

Andreadiniite	CuHgAg₇Pb₇Sb₂₄S₄₈	Mon. 2/m : P2₁/b
Arsenquatrandorite	Ag_17.6Pb_12.8Sb_38.1As_11.5S₉₆	Mon. 2/m : P2₁/b
Aschamalmite	Pb_6-3xBi_2+xS₉	Mon. 2/m : B2/m
Baiamareite	Ag₄Pb₁₂Fe₄Sb₂₀S₄₈	Mon. 2/m
Brusnitsynite	Mn₃CuPbAs₃Sb₂S₁₂	Mon. 2/m : P2₁/b
Clino-oscarkempffite	Ag₁₅Pb₆Sb₂₁Bi₁₈S₇₂	Mon. 2/m : P2₁/b
Erzwiesite	Ag₈Pb₁₂Bi₁₆S₄₀	Orth. mmm(2/m2/m2/m) : Cmcm
Eskimoite	Ag₇Pb₁₀Bi₁₅S₃₆	Mon.
Fizélyite	Ag₅Pb₁₄Sb₂₁S₄₈	Mon. 2/m
Gustavite	AgPbBi₃S₆	Orth. mmm(2/m2/m2/m)
Heyrovskýite	Pb₆Bi₂S₉	Orth. mmm(2/m2/m2/m) : Cccm
Holubite	Ag₃Pb₆(Sb₈Bi₃)S₂₄	Mon. 2/m
Jasrouxite	Ag₁₆Pb₄(Sb₂₅As₁₅)S₇₂	Tric. 1 : P1
Lasmanisite	Ag₁₂Pb₁₃Mn₁₁Sb₄₄S₉₆	Orth. 222 : P2₁2₁2₁
Lillianite	Pb_3-2xAg_xBi_2+xS₆	Orth. mmm(2/m2/m2/m)
Menchettiite	AgPb_2.40Mn_1.60Sb₃As₂S₁₂	Mon. 2/m : P2₁/b
Oscarkempffite	Ag₁₀Pb₄(Sb₁₇Bi₉)S₄₈	Orth. mm2
Ourayite	Ag₃Pb₄Bi₅S₁₃	Orth.
Oyonite	Ag₃Mn₂Pb₄Sb₇As₄S₂₄	Mon. 2/m
Quatrandorite	AgPbSb₃S₆	Mon. 2/m : P2₁/b
Ramdohrite	Pb_5.9Fe_0.1Mn_0.1In_0.1Cd_0.2Ag_2.8Sb_10.8S₂₄	Mon. 2/m
Roshchinite	Ag₁₉Pb₁₀Sb₅₁S₉₆	Orth. mmm(2/m2/m2/m) : Pnma
'Schirmerite'	PbAgBi₃S₆ - Pb₃Ag_1.5Bi_3.5S₉	Orth.
Senandorite	AgPbSb₃S₆	Orth. mm2 : Pmn2₁
Staročeskéite	Ag_0.70Pb_1.60(Bi_1.35Sb_1.35)_Σ2.70S₆	Orth. mmm(2/m2/m2/m) : Cmcm
Tarutinoite	Ag₃Pb₇Bi₇S₁₉	Mon. 2/m : B2/m
Terrywallaceite	AgPb(Sb,Bi)₃S₆	Mon. 2/m : P2₁/b
Treasurite	Ag₇Pb₆Bi₁₅S₃₂	Mon.
Uchucchacuaite	AgMnPb₃Sb₅S₁₂	Orth. mmm(2/m2/m2/m) : Pmmm
Ustarasite	Pb(Bi,Sb)₆S₁₀ (?)
Vikingite	Ag₅Pb₈Bi₁₃S₃₀	Mon. 2/m : B2/m
Xilingolite	Pb₃Bi₂S₆	Mon.

Related Minerals - Strunz-mindat Grouping Hide

2.JB.	Clino-oscarkempffite	Ag₁₅Pb₆Sb₂₁Bi₁₈S₇₂	Mon. 2/m : P2₁/b
2.JB.	Arsenquatrandorite	Ag_17.6Pb_12.8Sb_38.1As_11.5S₉₆	Mon. 2/m : P2₁/b
2.JB.	Ginelfite	Ag₂(Ag_0.5Fe)TlPb_23.5(Sb,As)_33.5S₇₆	Tric. 1 : P1
2.JB.	Andreadiniite	CuHgAg₇Pb₇Sb₂₄S₄₈	Mon. 2/m : P2₁/b
2.JB.	Chukotkaite	AgPb₇Sb₅S₁₅	Mon. 2/m : P2₁/b
2.JB.	Selenojunoite	Cu₂Pb₃Bi₈Se₁₆	Mon. 2/m : B2/m
2.JB.	Lechnerite	Ag₁₀Cu₄HgPb₃₃Sb₅₈S₁₂₈	Tric. 1 : P1
2.JB.	Cuprosenandorite	Ag₁₆Cu₈Pb₂₄Sb₇₂S₁₄₄	Orth. mm2 : Pna2₁
2.JB.	Morleyite	Ag₂CuPb₂₅Sb₂₄As₄S_68.5	Tric. 1 : P1
2.JB.	Lasmanisite	Ag₁₂Pb₁₃Mn₁₁Sb₄₄S₉₆	Orth. 222 : P2₁2₁2₁
2.JB.	Montpelvouxite	AgPb₁₆Sb₂₇As₁₈S₈₄	Tric. 1 : P1
2.JB.	Senandorite	AgPbSb₃S₆	Orth. mm2 : Pmn2₁
2.JB.	Oscarkempffite	Ag₁₀Pb₄(Sb₁₇Bi₉)S₄₈	Orth. mm2
2.JB.05	Diaphorite	Ag₃Pb₂Sb₃S₈	Mon. 2/m : P2₁/b
2.JB.10	Cosalite	Pb₂Bi₂S₅	Orth. mmm(2/m2/m2/m)
2.JB.15	Marrite	AgPbAsS₃	Mon. 2/m : P2₁/b
2.JB.15	Freieslebenite	AgPbSbS₃	Mon. 2/m : P2₁/b
2.JB.20	Cannizzarite	Pb₄₈Bi₅₆S₁₃₂	Mon. 2/m : P2₁/m
2.JB.20	Wittite	Pb₉Bi₁₂(S,Se)₂₇	Mon.
2.JB.25j	Rouxelite	Cu₂HgPb₂₃Sb₂₇S_65.5	Tric. 1 : P1
2.JB.25i	Neyite	Ag₂Cu₆Pb₂₅Bi₂₆S₆₈	Mon. 2/m : B2/m
2.JB.25a	Junoite	Cu₂Pb₃Bi₈(S,Se)₁₆	Mon. 2/m : B2/m
2.JB.25f	Ángelaite	Cu₂AgPbBiS₄	Orth. mmm(2/m2/m2/m) : Pnma
2.JB.25e	Galenobismutite	PbBi₂S₄	Orth. mmm(2/m2/m2/m)
2.JB.25c	Nordströmite	CuPb₃Bi₇(Se₄S₁₀)	Mon. 2/m : P2₁/m
2.JB.25i	Cuproneyite	Cu₇Pb₂₇Bi₂₅S₆₈	Mon. 2/m : B2/m
2.JB.25g	Nuffieldite	Cu_1.4Pb_2.4Bi_2.4Sb_0.2S₇	Orth. mmm(2/m2/m2/m)
2.JB.25h	Weibullite	Pb₅Bi₈Se₇S₁₁	Orth. mmm(2/m2/m2/m) : Pnma
2.JB.25d	Proudite	CuPb_7.5Bi_9.33(S,Se)₂₂	Mon. 2/m : B2/m
2.JB.25b	Felbertalite	Cu₂Pb₆Bi₈S₁₉	Mon. 2/m : B2/m
2.JB.30a	Jordanite	Pb₁₄As₆S₂₃	Mon. 2/m : P2₁/m
2.JB.30a	Geocronite	Pb₁₄Sb₆S₂₃	Mon. 2/m : P2₁/m
2.JB.30a	Arsenmarcobaldiite	Pb₁₂(As_3.2Sb_2.8)_Σ6S₂₁	Tric. 1 : P1
2.JB.30b	Kirkiite	Pb₁₀Bi₃As₃S₁₉	Mon. 2/m : P2₁/m
2.JB.30c	Tsugaruite	Pb₂₈As₁₅S₅₀Cl	Orth. mm2 : Pnn2
2.JB.30a	Marcobaldiite	Pb₁₂(Sb₃As₂Bi)_Σ6S₂₁	Tric. 1 : P1
2.JB.35d	Pellouxite	(Cu,Ag)Pb₁₀Sb₁₂S₂₇O(Cl,S)_0.6	Mon. 2/m : B2/m
2.JB.35e	Chovanite	Pb_15-2xSb_14+2xS₃₆O_x (x ~ 0.2)	Mon. 2/m : B2/m
2.JB.35a	Zinkenite	Pb₉Sb₂₂S₄₂	Hex. 6 : P6₃
2.JB.35c	Pillaite	Pb₉Sb₁₀S₂₃ClO_0.5	Mon. 2/m : B2/m
2.JB.35b	Scainiite	Pb₁₄Sb₃₀S₅₄O₅	Mon. 2/m : B2/m
2.JB.35f	Tubulite	Ag₂Pb₂₂Sb₂₀S₅₃	Mon. m : Pb
2.JB.40a	Fizélyite	Ag₅Pb₁₄Sb₂₁S₄₈	Mon. 2/m
2.JB.40a	Ramdohrite	Pb_5.9Fe_0.1Mn_0.1In_0.1Cd_0.2Ag_2.8Sb_10.8S₂₄	Mon. 2/m
2.JB.40e	Ustarasite	Pb(Bi,Sb)₆S₁₀ (?)
2.JB.40a	'Bursaite'	Pb₅Bi₄S₁₁ (?)	Orth.
2.JB.40	'UM1988-05-S:AgBiCuHgPb'	(Hg,Ag,Cu,Pb)₅Pb₅Bi₁₁S₂₇
2.JB.40	'UM1988-06-S:AgBiCuHgPb'	(Pb,Hg)₁₂(Cu,Ag)₃(Bi,Sb)₁₀(S,Te)₂₇
2.JB.40a	Terrywallaceite	AgPb(Sb,Bi)₃S₆	Mon. 2/m : P2₁/b
2.JB.40a	Jasrouxite	Ag₁₆Pb₄(Sb₂₅As₁₅)S₇₂	Tric. 1 : P1
2.JB.40a	Tarutinoite	Ag₃Pb₇Bi₇S₁₉	Mon. 2/m : B2/m
2.JB.40a	Oyonite	Ag₃Mn₂Pb₄Sb₇As₄S₂₄	Mon. 2/m
2.JB.40b	Heyrovskýite	Pb₆Bi₂S₉	Orth. mmm(2/m2/m2/m) : Cccm
2.JB.40a	Quatrandorite	AgPbSb₃S₆	Mon. 2/m : P2₁/b
2.JB.40a	Erzwiesite	Ag₈Pb₁₂Bi₁₆S₄₀	Orth. mmm(2/m2/m2/m) : Cmcm
2.JB.40a	Vikingite	Ag₅Pb₈Bi₁₃S₃₀	Mon. 2/m : B2/m
2.JB.40a	Lillianite	Pb_3-2xAg_xBi_2+xS₆	Orth. mmm(2/m2/m2/m)
2.JB.40b	Baiamareite	Ag₄Pb₁₂Fe₄Sb₂₀S₄₈	Mon. 2/m
2.JB.40a	Staročeskéite	Ag_0.70Pb_1.60(Bi_1.35Sb_1.35)_Σ2.70S₆	Orth. mmm(2/m2/m2/m) : Cmcm
2.JB.40a	Roshchinite	Ag₁₉Pb₁₀Sb₅₁S₉₆	Orth. mmm(2/m2/m2/m) : Pnma
2.JB.40b	Aschamalmite	Pb_6-3xBi_2+xS₉	Mon. 2/m : B2/m
2.JB.40b	Eskimoite	Ag₇Pb₁₀Bi₁₅S₃₆	Mon.
2.JB.40a	Menchettiite	AgPb_2.40Mn_1.60Sb₃As₂S₁₂	Mon. 2/m : P2₁/b
2.JB.40a	Holubite	Ag₃Pb₆(Sb₈Bi₃)S₂₄	Mon. 2/m
2.JB.40a	Brusnitsynite	Mn₃CuPbAs₃Sb₂S₁₂	Mon. 2/m : P2₁/b
2.JB.40a	Treasurite	Ag₇Pb₆Bi₁₅S₃₂	Mon.
2.JB.40c	Ourayite	Ag₃Pb₄Bi₅S₁₃	Orth.
2.JB.40a	Uchucchacuaite	AgMnPb₃Sb₅S₁₂	Orth. mmm(2/m2/m2/m) : Pmmm
2.JB.40d	'Schirmerite'	PbAgBi₃S₆ - Pb₃Ag_1.5Bi_3.5S₉	Orth.
2.JB.40a	Xilingolite	Pb₃Bi₂S₆	Mon.
2.JB.40a	Gustavite	AgPbBi₃S₆	Orth. mmm(2/m2/m2/m)
2.JB.55	Gratonite	Pb₉As₄S₁₅	Trig. 3m : R3m
2.JB.60	Marrucciite	Hg₃Pb₁₆Sb₁₈S₄₆	Mon. 2/m : B2/m
2.JB.65	Vurroite	Pb₂₀Sn₂(Bi,As)₂₂S₅₄Cl₆	Mon. 2/m : B2/b
2.JB.65	Tazieffite	Pb₂₀Cd₂(As,Bi)₂₂S₅₀Cl₁₀	Mon. 2/m : B2/b
2.JB.70	Daliranite	PbHgAs₂S₅	Mon.

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.

Internet Links for LazerckeriteHide

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https://www.mindat.org/min-470683.html
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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Mineral Dealers:

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References for LazerckeriteHide

Reference List:

Bosi, Ferdinando, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2023) Newsletter 72. Mineralogical Magazine, 87 (3) 512-518 doi:10.1180/mgm.2023.21

Localities for LazerckeriteHide

Showing 2 localities.

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.

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Locality ListHide

- 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.


Bolivia
Oruro Cercado Province Oruro ⓘ San José Mine ?	Pažout et al. (2024)

Czech Republic (TL)
Central Bohemian Region Kutná Hora District Kutná Hora ⓘ Staročeské Lode (TL)	Bosi et al. (2023) +1 other reference

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Lazerckerite

About LazerckeriteHide