Marrite
A valid IMA mineral species - grandfathered
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About Marrite
Formula:
AgPbAsS3
Colour:
Lead-gray, steel-gray; often iridescent due to tarnish
Lustre:
Metallic
Hardness:
3
Specific Gravity:
5.822 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
Named by Richard Harrison Solly in 1904 in honor of John Edward Marr (14 June 1857, Poulton-le-Sands, England – 1 October 1933), geologist, paleontologist and professor at Cambridge University, England. He made significant contributions to fossil dating of rocks in the UK. He was awarded the Lyell Medal in 1900 and the Wollaston Medal in 1914.
Type Locality:
Unique Identifiers
Mindat ID:
2579
Long-form identifier:
mindat:1:1:2579:5
Similar Names
| Marlite | A synonym of 'Marlstone' | |
| Martite | A variety of Hematite | Fe2O3 |
| Masrite | A variety of Halotrichite | (Fe,Mn,Co)Al2(SO4)4 · 24H2O |
| Meierite | A valid IMA mineral species | Ba44Si66Al30O192Cl25(OH)33 |
| Mohrite | A valid IMA mineral species | (NH4)2Fe(SO4)2 · 6H2O |
| Moiraite | A valid IMA mineral species - pending publication | Pb12Sb8As8S36 |
| Mooreite | A valid IMA mineral species - grandfathered | Mg9◻2Mn2Zn4(SO4)2(OH)26 · 8H2O |
| Mourite | A valid IMA mineral species | UMo5O12(OH)10 |
| Muirite | A valid IMA mineral species | Ba10(Ca2Mn2+Ti)[Si8O24]O2Cl10 |
IMA Classification of Marrite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Ag1+Pb2+As3+S2-3
First published:
1904
Classification of Marrite
2.JB.15
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
3.4.6.1
3 : SULFOSALTS
4 : ø = 3
3 : SULFOSALTS
4 : ø = 3
5.7.20
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals
Mineral Symbols
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 |
|---|---|---|
| Mrr | 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 Marrite
Metallic
Transparency:
Opaque
Colour:
Lead-gray, steel-gray; often iridescent due to tarnish
Streak:
Black with a chocolate-brown tint
Hardness:
3 on Mohs scale
Hardness:
VHN100=168 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
5.822 g/cm3 (Calculated)
Optical Data of Marrite
Anisotropism:
Distinct, strong in oil.
Colour in reflected light:
White
Internal Reflections:
Red
Chemistry of Marrite
Mindat Formula:
AgPbAsS3
Element Weights:
Elements listed:
Crystallography of Marrite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 7.291(8) Å, b = 12.68(34) Å, c = 5.998(5) Å
β = 91.22(3)°
β = 91.22(3)°
Ratio:
a:b:c = 0.575 : 1 : 0.473
Unit Cell V:
554.39 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Equant to tabular {010}. Striated [001].
Twinning:
Partly bent twin lamellae seen in polished section, in two sets crossing at oblique angles.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0010652 | Marrite | Wuensch B J, Nowacki W (1967) The crystal structure of marrite, PbAgAsS3 Zeitschrift fur Kristallographie 125 459-488 | ![]() | 1967 | Lengenbach quarry, Binnatal, Switzerland | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.45 Å | (100) |
| 2.75 Å | (100) |
| 3.00 Å | (70) |
| 2.05 Å | (50) |
| 2.91 Å | (40) |
| 2.01 Å | (40) |
| 0.996 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Marrite
General Appearance of Type Material:
Highly modified and are usually doubly terminated. They are tarnished with red, yellow, and blue colours.
Place of Conservation of Type Material:
The Natural History Museum, London, England, 87130.
Associated Minerals at Type Locality:
Other Language Names for Marrite
Relationship of Marrite to other Species
Common Associates
Associations Based on Photo Data:
| 23 photos of Marrite associated with Xanthoconite | Ag3AsS3 |
| 12 photos of Marrite associated with Jordanite | Pb14As6S23 |
| 7 photos of Marrite associated with Galena | PbS |
| 3 photos of Marrite associated with Dolomite | CaMg(CO3)2 |
| 3 photos of Marrite associated with Quadratite | Ag(Cd,Pb)AsS3 |
| 2 photos of Marrite associated with Pyrite | FeS2 |
| 2 photos of Marrite associated with Smithite | AgAsS2 |
| 2 photos of Marrite associated with Stephanite | Ag5SbS4 |
| 2 photos of Marrite associated with Native Silver | Ag |
| 1 photo of Marrite associated with Billingsleyite | Ag7AsS6 |
Related Minerals - Strunz-mindat Grouping
| 2.JB. | Clino-oscarkempffite | Ag15Pb6Sb21Bi18S72 |
| 2.JB. | Arsenquatrandorite | Ag17.6Pb12.8Sb38.1As11.5S96 |
| 2.JB. | Ginelfite | Ag2(Ag0.5Fe)TlPb23.5(Sb,As)33.5S76 |
| 2.JB. | Andreadiniite | CuHgAg7Pb7Sb24S48 |
| 2.JB. | Chukotkaite | AgPb7Sb5S15 |
| 2.JB. | Selenojunoite | Cu2Pb3Bi8Se16 |
| 2.JB. | Lechnerite | Ag10Cu4HgPb33Sb58S128 |
| 2.JB. | Cuprosenandorite | Ag16Cu8Pb24Sb72S144 |
| 2.JB. | Morleyite | Ag2CuPb25Sb24As4S68.5 |
| 2.JB. | Lazerckerite | Ag3.75Pb4.50(Sb7.75Bi4)S24 |
| 2.JB. | Lasmanisite | Ag12Pb13Mn11Sb44S96 |
| 2.JB. | Montpelvouxite | AgPb16Sb27As18S84 |
| 2.JB. | Senandorite | AgPbSb3S6 |
| 2.JB. | Oscarkempffite | Ag10Pb4(Sb17Bi9)S48 |
| 2.JB.05 | Diaphorite | Ag3Pb2Sb3S8 |
| 2.JB.10 | Cosalite | Pb2Bi2S5 |
| 2.JB.15 | Freieslebenite | AgPbSbS3 |
| 2.JB.20 | Cannizzarite | Pb48Bi56S132 |
| 2.JB.20 | Wittite | Pb9Bi12(S,Se)27 |
| 2.JB.25j | Rouxelite | Cu2HgPb23Sb27S65.5 |
| 2.JB.25i | Neyite | Ag2Cu6Pb25Bi26S68 |
| 2.JB.25a | Junoite | Cu2Pb3Bi8(S,Se)16 |
| 2.JB.25f | Ángelaite | Cu2AgPbBiS4 |
| 2.JB.25e | Galenobismutite | PbBi2S4 |
| 2.JB.25c | Nordströmite | CuPb3Bi7(Se4S10) |
| 2.JB.25i | Cuproneyite | Cu7Pb27Bi25S68 |
| 2.JB.25g | Nuffieldite | Cu1.4Pb2.4Bi2.4Sb0.2S7 |
| 2.JB.25h | Weibullite | Pb5Bi8Se7S11 |
| 2.JB.25d | Proudite | CuPb7.5Bi9.33(S,Se)22 |
| 2.JB.25b | Felbertalite | Cu2Pb6Bi8S19 |
| 2.JB.30a | Jordanite | Pb14As6S23 |
| 2.JB.30a | Geocronite | Pb14Sb6S23 |
| 2.JB.30a | Arsenmarcobaldiite | Pb12(As3.2Sb2.8)Σ6S21 |
| 2.JB.30b | Kirkiite | Pb10Bi3As3S19 |
| 2.JB.30c | Tsugaruite | Pb28As15S50Cl |
| 2.JB.30a | Marcobaldiite | Pb12(Sb3As2Bi)Σ6S21 |
| 2.JB.35d | Pellouxite | (Cu,Ag)Pb10Sb12S27O(Cl,S)0.6 |
| 2.JB.35e | Chovanite | Pb15-2xSb14+2xS36Ox (x ~ 0.2) |
| 2.JB.35a | Zinkenite | Pb9Sb22S42 |
| 2.JB.35c | Pillaite | Pb9Sb10S23ClO0.5 |
| 2.JB.35b | Scainiite | Pb14Sb30S54O5 |
| 2.JB.35f | Tubulite | Ag2Pb22Sb20S53 |
| 2.JB.40a | Fizélyite | Ag5Pb14Sb21S48 |
| 2.JB.40a | Ramdohrite | Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24 |
| 2.JB.40e | Ustarasite | Pb(Bi,Sb)6S10 (?) |
| 2.JB.40a | 'Bursaite' | Pb5Bi4S11 (?) |
| 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 |
| 2.JB.40a | Jasrouxite | Ag16Pb4(Sb25As15)S72 |
| 2.JB.40a | Tarutinoite | Ag3Pb7Bi7S19 |
| 2.JB.40a | Oyonite | Ag3Mn2Pb4Sb7As4S24 |
| 2.JB.40b | Heyrovskýite | Pb6Bi2S9 |
| 2.JB.40a | Quatrandorite | AgPbSb3S6 |
| 2.JB.40a | Erzwiesite | Ag8Pb12Bi16S40 |
| 2.JB.40a | Vikingite | Ag5Pb8Bi13S30 |
| 2.JB.40a | Lillianite | Pb3-2xAgxBi2+xS6 |
| 2.JB.40b | Baiamareite | Ag4Pb12Fe4Sb20S48 |
| 2.JB.40a | Staročeskéite | Ag0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6 |
| 2.JB.40a | Roshchinite | Ag19Pb10Sb51S96 |
| 2.JB.40b | Aschamalmite | Pb6-3xBi2+xS9 |
| 2.JB.40b | Eskimoite | Ag7Pb10Bi15S36 |
| 2.JB.40a | Menchettiite | AgPb2.40Mn1.60Sb3As2S12 |
| 2.JB.40a | Holubite | Ag3Pb6(Sb8Bi3)S24 |
| 2.JB.40a | Brusnitsynite | Mn3CuPbAs3Sb2S12 |
| 2.JB.40a | Treasurite | Ag7Pb6Bi15S32 |
| 2.JB.40c | Ourayite | Ag3Pb4Bi5S13 |
| 2.JB.40a | Uchucchacuaite | AgMnPb3Sb5S12 |
| 2.JB.40d | 'Schirmerite' | PbAgBi3S6 - Pb3Ag1.5Bi3.5S9 |
| 2.JB.40a | Xilingolite | Pb3Bi2S6 |
| 2.JB.40a | Gustavite | AgPbBi3S6 |
| 2.JB.55 | Gratonite | Pb9As4S15 |
| 2.JB.60 | Marrucciite | Hg3Pb16Sb18S46 |
| 2.JB.65 | Vurroite | Pb20Sn2(Bi,As)22S54Cl6 |
| 2.JB.65 | Tazieffite | Pb20Cd2(As,Bi)22S50Cl10 |
| 2.JB.70 | Daliranite | PbHgAs2S5 |
Other Information
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 Marrite
mindat.org URL:
https://www.mindat.org/min-2579.html
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References for Marrite
Reference List:
Solly, R. H. (1905) Some new minerals from the Binnenthal, Switzerland. Mineralogical Magazine and Journal of the Mineralogical Society, 14 (64) 72-82 doi:10.1180/minmag.1905.014.64.03
Solly, R. H. (1906) Notes on some Binnenthal minerals (Ilmenite, Seligmannite, Marrite, &c.) Mineralogical Magazine and Journal of the Mineralogical Society, 14 (65) 184-190 doi:10.1180/minmag.1906.014.65.11 p.188
Graeser, Stefan (1965) Die Mineralfundstellen im Dolomit des Binnatales. Schweizerische Mineralogische und Petrographische Mitteilungen, 45 (2). p.597-795. doi:10.5169/SEALS-35205
WUENSCH, Β. J.; NOWACKI, W. (1967) The crystal structure of marrite, PbAgAsS3. Zeitschrift für Kristallographie, 125 (1-6). 459-488 doi:10.1524/zkri.1967.125.16.459
Berlepsch, Peter; Makovicky, Emil; Armbruster, Thomas (2003) Structural relationships between sicherite, marrite, freieslebenite, and diaphorite - analysis based on anionic nets and polyhedral characteristics. Neues Jahrbuch für Mineralogie - Abhandlungen, 178 (1). 75-91 doi:10.1127/0077-7757/2002/0178-0075
Localities for Marrite
Showing 10 localities.
Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Australia | |
| Hollis et al. (2017) +1 other reference |
Austria | |
| Kolitsch et al. (2017) |
Greece | |
| Rieck et al. (2018) |
| Triantafyllidis (2019) |
Iran | |
| Mehrabi et al. (2016) |
Peru | |
| Vizquerra Benavides (2006) |
Romania | |
| Dincă et al. (2025) |
Spain | |
| Torres-Ruis et al. (1985) |
Switzerland (TL) | |
| Solly (1904) +1 other reference |
| Dan Topa |
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The
Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland