Grumiplucite
A valid IMA mineral species
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About Grumiplucite
Formula:
HgBi2S4
Colour:
grey-black
Lustre:
Metallic
Specific Gravity:
7.02 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
Named after the amateur mineralogical organization Gruppo Mineralogico e Paleontologico Lucchese, members of which provided the specimens for study.
Type Locality:
Known synthetic analogue. Unique combination of elements. Second Bi-Hg mineral after petrovicite. The Hg analogue of kudriavite.
OD (ordered-disordered) character.
OD (ordered-disordered) character.
Unique Identifiers
Mindat ID:
6981
Long-form identifier:
mindat:1:1:6981:2
IMA Classification of Grumiplucite
Classification of Grumiplucite
2.JA.05b
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
A : Galena derivatives with little or no Pb
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
A : Galena derivatives with little or no Pb
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 |
|---|---|---|
| Gpc | 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 Grumiplucite
Metallic
Transparency:
Opaque
Colour:
Grey-black
Cleavage:
Perfect
Almost micaceous (001)
Almost micaceous (001)
Density:
7.02 g/cm3 (Calculated)
Optical Data of Grumiplucite
Anisotropism:
distint, bluish grey to yellowish grey
Bireflectance:
low
Reflectivity:
| Wavelength | R1 (%) | R2 (%) | imR1 (%) | imR2 (%) |
|---|---|---|---|---|
| 470nm | 35.7% | 37.8% | 23.2% | 25.0% |
| 546nm | 35.4% | 37.5% | 23.0% | 25.0% |
| 589nm | 34.9% | 37.0% | 22.0% | 24.0% |
| 650nm | 33.9% | 35.8% | 20.4% | 22.7% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 37.8%.
R1 shown in black, R2 shown in red, imR1 shown in green, imR2 shown in blue
Colour in reflected light:
creamy white
Chemistry of Grumiplucite
Mindat Formula:
HgBi2S4
Element Weights:
Elements listed:
Crystallography of Grumiplucite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 14.172(2) Å, b = 4.0525(7) Å, c = 13.975(1) Å
β = 118.257(8)°
β = 118.257(8)°
Ratio:
a:b:c = 3.497 : 1 : 3.448
Unit Cell V:
707 ų
Z:
2
Morphology:
Elongated along the [010] axis
Twinning:
Ubiquitously twinned on (001)
Comment:
Cell data from Števko et al. 2015
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0009710 | Grumiplucite | Mumme W G, Watts J A (1980) HgBi2S4: Crystal structure and relationship with the pavonite homologous series Acta Crystallographica B36 1300-1304 |  | 1980 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.153 Å | (100) |
| 3.077 Å | (82) |
| 2.0516 Å | (59) |
| 1.5388 Å | (32) |
| 3.542 Å | (22) |
| 3.492 Å | (13) |
| 3.534 Å | (10) |
Comments:
From Števko et al. 2015
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 Grumiplucite
General Appearance of Type Material:
Very slender grey-black prismatic crystals, with a metallic luster and almost micaceous (001) cleavage. Crystals are elongated according to [010] and are twinned on (001).
Place of Conservation of Type Material:
Museo di Storia Naturale e del Territorio, Pisa University (n° 4262).
Geological Setting of Type Material:
Quartz veins in a small mercury deposit hosted within phyllitic and metavolcanic rocks of Middle to Upper Ordovician, intensely deformed and metamorphosed to the greenschist facies. Low-temperature, formed in low-f(S2) conditions.
Associated Minerals at Type Locality:
Synonyms of Grumiplucite
Other Language Names for Grumiplucite
Relationship of Grumiplucite to other Species
Member of:
Other Members of Pavonite Homologous Series:
| Benjaminite | Ag3Bi7S12 | Mon. 2/m : B2/m |
| Cupromakopavonite | Ag3Cu8Pb4Bi19S38 | Mon. 2/m : B2/m |
| Cupromakovickyite | Cu4AgPb2Bi9S18 | Mon. 2/m : B2/m |
| Cupropavonite | Cu0.9Ag0.5Pb0.6Bi2.5S5 | Mon. 2/m : B2/m |
| Dantopaite | Ag5Bi13S22 | Mon. 2/m : B2/m |
| Graţianite | MnBi2S4 | Mon. 2/m : B2/m |
| Kudriavite | (Cd,Pb)Bi2S4 | Mon. 2/m : B2/m |
| Luboržákite | Mn2AsSbS5 | Mon. 2/m : B2/m |
| Makovickyite | Cu1.12Ag0.81Pb0.27Bi5.35S9 | Mon. 2/m |
| Mummeite | Cu0.58Ag3.11Pb1.10Bi6.65S13 | Mon. |
| Pavonite | AgBi3S5 | Mon. 2/m : B2/m |
| Sunshuite | The Fe analogue of graţianite. | Mon. 2/m : B2/m |
Common Associates
Associated Minerals Based on Photo Data:
| 16 photos of Grumiplucite associated with Cinnabar | HgS |
| 6 photos of Grumiplucite associated with Native Mercury | Hg |
| 3 photos of Grumiplucite associated with Quartz | SiO2 |
| 3 photos of Grumiplucite associated with Sphalerite | ZnS |
| 2 photos of Grumiplucite associated with Siderite | FeCO3 |
| 1 photo of Grumiplucite associated with Dolomite | CaMg(CO3)2 |
| 1 photo of Grumiplucite associated with Metacinnabar | HgS |
Related Minerals - Strunz-mindat Grouping
| 2.JA. | Ferdowsiite | Ag8(Sb5As3)S16 |
| 2.JA. | Luboržákite | Mn2AsSbS5 |
| 2.JA. | Sangenaroite | Ag8(Sb8-xAsx)SΣ16 |
| 2.JA.05a | Pavonite | AgBi3S5 |
| 2.JA.05c | Kudriavite | (Cd,Pb)Bi2S4 |
| 2.JA.05d | Cupromakovickyite | Cu4AgPb2Bi9S18 |
| 2.JA.05e | Benjaminite | Ag3Bi7S12 |
| 2.JA.05i | Livingstonite | HgSb4S6(S2) |
| 2.JA.05h | Mozgovaite | PbBi4S7 |
| 2.JA.05 | Dantopaite | Ag5Bi13S22 |
| 2.JA.05a | Cupropavonite | Cu0.9Ag0.5Pb0.6Bi2.5S5 |
| 2.JA.05 | Selenodantopaite | Ag5Bi13Se22 |
| 2.JA.05g | Borodaevite | Ag5(Bi,Pb,Fe)8(Sb,Bi)2S17 |
| 2.JA.05a | Cupromakopavonite | Ag3Cu8Pb4Bi19S38 |
| 2.JA.05d | Makovickyite | Cu1.12Ag0.81Pb0.27Bi5.35S9 |
| 2.JA.05f | Mummeite | Cu0.58Ag3.11Pb1.10Bi6.65S13 |
| 2.JA.10b | Kupčíkite | Cu3.4Fe0.6Bi5S10 |
| 2.JA.10d | Pizgrischite | (Cu,Fe)Cu14PbBi17S35 |
| 2.JA.10c | Hodrušite | Cu8Bi12S22 |
| 2.JA.10a | Cuprobismutite | Cu8AgBi13S24 |
| 2.JA.10e | Padĕraite | Cu7[(Cu,Ag)0.33Pb1.33Bi11.33]S22 |
| 2.JA.15 | Schapbachite | Ag0.4Pb0.2Bi0.4S |
| 2.JA.15 | Cuboargyrite | AgSbS2 |
| 2.JA.20 | Matildite | AgBiS2 |
| 2.JA.20 | Volynskite | AgBiTe2 |
| 2.JA.20 | Bohdanowiczite | AgBiSe2 |
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 Grumiplucite
mindat.org URL:
https://www.mindat.org/min-6981.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
References for Grumiplucite
Reference List:
Mumme, W. G., Watts, J. A. (1980) HgBi2S4: crystal structure and relationship with the pavonite homologous series. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 36 (6) 1300-1304 doi:10.1107/s0567740880005973
Localities for Grumiplucite
symbol to view information about a locality.
The 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.
Germany | |
| Frank Keutsch collection |
Italy (TL) | |
| Orlandi et al. (1998) |
Slovakia | |
| Števko et al. (2015) |
| Števko et al. (2015) | |
USA | |
| Dunning et al. (2020) |
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Rudňany, Spišská Nová Ves District, Košice Region, Slovakia