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Arsenmarcobaldiite

A valid IMA mineral species

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Arsenmarcobaldiite

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Arsenmarcobaldiite

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Arsenmarcobaldiite

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Arsenmarcobaldiite

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Arsenmarcobaldiite

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Arsenmarcobaldiite

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Arsenmarcobaldiite

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Arsenmarcobaldiite

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

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About ArsenmarcobaldiiteHide

Formula:

Pb₁₂(As_3.2Sb_2.8)_Σ6S₂₁

Colour:

Black

Lustre:

Metallic

Hardness:

Specific Gravity:

6.44 (Calculated)

Crystal System:

Triclinic

Member of:

Jordanite Homologous Series Group

Name:

Named for being the As-dominant isotype of marcobaldiite.

Type Locality:

ⓘ Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Belongs to the jordanite homologous series. Homeotypic with its Sb analogue marcobaldiite.

Unique IdentifiersHide

Mindat ID:

50342

Long-form identifier:

mindat:1:1:50342:4

IMA Classification of ArsenmarcobaldiiteHide

IMA status:

Approved

IMA Formula:

Pb²⁺₁₂(As³⁺_3.2Sb³⁺_2.8)S^2-₂₁

Approval year:

2016

First published:

2019

Type description reference:

Biagioni, Cristian; Moëlo, Yves; Merlino, Stefano; Pasero, Marco; Paar, Werner H.; Vezzoni, Simone; Zaccarini, Federica (2019) Arsenmarcobaldiite, Pb12(As3.2Sb2.8)Σ=6S21, a new N = 3.5 jordanite homologue from the Sant’Anna tectonic window, Apuan Alps (Tuscany, Italy). European Journal of Mineralogy, 31 (5-6). 1067-1077 doi:10.1127/ejm/2019/0031-2888

Classification of ArsenmarcobaldiiteHide

Strunz-mindat (2026):

2.JB.30a

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
Amcb	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 ArsenmarcobaldiiteHide

Lustre:

Metallic

Colour:

Black

Streak:

Black

Hardness:

3 on Mohs scale

Hardness:

VHN₁₅=176 kg/mm² - Vickers

Tenacity:

Brittle

Cleavage:

Poor/Indistinct

Fracture:

Irregular/Uneven

Density:

6.44 g/cm³ (Calculated)

Comment:

Could not be measured due to lack of material.

Optical Data of ArsenmarcobaldiiteHide

Anisotropism:

Distinct, brownish to bluish-grey

Bireflectance:

Distinct

Reflectivity:

Wavelength	R₁ (%)	R₂ (%)
400nm	33.5%	39.7%
420nm	32.7%	39.2%
440nm	32.2%	38.4%
460nm	33.3%	38.2%
470nm	32.8%	38.3%
480nm	32.4%	38.1%
500nm	32.6%	38.2%
520nm	32.5%	37.9%
540nm	32.4%	37.9%
546nm	32.2%	37.5%
560nm	31.9%	37.2%
580nm	31.7%	37.2%
589nm	31.7%	36.9%
600nm	31.7%	37.0%
620nm	31.6%	36.7%
640nm	31.6%	36.7%
650nm	31.4%	36.6%
660nm	31.2%	36.8%
680nm	30.5%	35.7%
700nm	30.1%	35.6%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 39.7%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

White

Internal Reflections:

None observed

Pleochroism:

Weak

Comments:

Shades of gray

Chemistry of ArsenmarcobaldiiteHide

Mindat Formula:

Pb₁₂(As_3.2Sb_2.8)_Σ6S₂₁

Elements listed:

As, Pb, S, Sb - search for minerals with similar chemistry

Crystallography of ArsenmarcobaldiiteHide

Crystal System:

Triclinic

Class (H-M):

1 - Pinacoidal

Space Group:

Cell Parameters:

a = 8.9736(9) Å, b = 29.334(3) Å, c = 8.4925(10) Å
α = 98.369(6)°, β = 118.705(6)°, γ = 90.874(6)°

Ratio:

a:b:c = 0.306 : 1 : 0.29

Unit Cell V:

1930.5 Å³

Twinning:

Polysynthetic twinning is common and characteristic

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.595 Å	(m)
3.556 Å	(m)
3.429 Å	(m)
3.214 Å	(ms)
3.027 Å	(ms)
2.233 Å	(s)
2.125 Å	(ms)
1.839 Å	(ms)

Locality:

Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Reference:

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-? alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations

Type Occurrence of ArsenmarcobaldiiteHide

Type Locality:

ⓘ Verzalla, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

General Appearance of Type Material:

Black anhedral grains, up to 0.5 mm in size.

Place of Conservation of Type Material:

Mineralogical collections of the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (Pisa), Italy (catalogue number 19898).

Geological Setting of Type Material:

Hydrothermal veins. In baryte + pyrite lenses embedded in schists.

Associated Minerals at Type Locality:

Baryte

Pyrite

Sphalerite

Reference:

Synonyms of ArsenmarcobaldiiteHide

IMA2016-045

Other Language Names for ArsenmarcobaldiiteHide

Dutch:Arsenmarcobaldiiet

French:Arsenmarcobaldiite

German:Arsenmarcobaldiit

Norwegian:Arsenmarcobaldiitt

Relationship of Arsenmarcobaldiite to other SpeciesHide

Member of:

Jordanite Homologous Series Group

Other Members of Jordanite Homologous Series:

Geocronite	Pb₁₄Sb₆S₂₃	Mon. 2/m : P2₁/m
Gratonite	Pb₉As₄S₁₅	Trig. 3m : R3m
Jordanite	Pb₁₄As₆S₂₃	Mon. 2/m : P2₁/m
Kirkiite	Pb₁₀Bi₃As₃S₁₉	Mon. 2/m : P2₁/m
Marcobaldiite	Pb₁₂(Sb₃As₂Bi)_Σ6S₂₁	Tric. 1 : P1

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.	Lazerckerite	Ag_3.75Pb_4.50(Sb_7.75Bi₄)S₂₄	Mon. 2/m : P2₁/b
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.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 ArsenmarcobaldiiteHide

mindat.org URL:

https://www.mindat.org/min-50342.html
Please feel free to link to this page.

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for ArsenmarcobaldiiteHide

Reference List:

Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2016) New minerals and nomenclature modifications approved in 2016, CNMNC Newsletter No. 33. Mineralogical Magazine, 80 (6) 1135-1144 doi:10.1180/minmag.2016.080.085

(2022) Arsenmarcobaldiite. Handbook of Mineralogy. Mineralogical Society of America

Localities for ArsenmarcobaldiiteHide

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.

Hide all sections | Show all sections

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.


Italy (TL)
Tuscany Lucca Province Stazzema Sant'Anna di Stazzema ⓘ Verzalla (TL)	Hålenius et al. (2016) +1 other reference

Russia
Zabaykalsky Krai Shelopuginsky District ⓘ Shakhtama deposit	Yurgenson et al. (2023)

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Arsenmarcobaldiite

About ArsenmarcobaldiiteHide

Unique IdentifiersHide

IMA Classification of ArsenmarcobaldiiteHide

Classification of ArsenmarcobaldiiteHide

Mineral SymbolsHide

Physical Properties of ArsenmarcobaldiiteHide

Optical Data of ArsenmarcobaldiiteHide

Chemistry of ArsenmarcobaldiiteHide

Crystallography of ArsenmarcobaldiiteHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of ArsenmarcobaldiiteHide

Synonyms of ArsenmarcobaldiiteHide

Other Language Names for ArsenmarcobaldiiteHide

Relationship of Arsenmarcobaldiite to other SpeciesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for ArsenmarcobaldiiteHide

References for ArsenmarcobaldiiteHide

Localities for ArsenmarcobaldiiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide