Cuproneyite
A valid IMA mineral species
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About Cuproneyite
Formula:
Cu7Pb27Bi25S68
Colour:
Silver-grey
Lustre:
Metallic
Hardness:
3
Specific Gravity:
7.113 (Calculated)
Crystal System:
Monoclinic
Name:
For the mineral neyite and its copper content.
Type Locality:
Cu analogue of neyite.
‘Cu-enriched cuproneyite’ may be explained by aikinite nanoinclusions in cuproneyite (Ciobanu et al., 2016).
‘Cu-enriched cuproneyite’ may be explained by aikinite nanoinclusions in cuproneyite (Ciobanu et al., 2016).
Unique Identifiers
Mindat ID:
39287
Long-form identifier:
mindat:1:1:39287:3
IMA Classification of Cuproneyite
Approved
IMA Formula:
Cu1+7Pb2+27Bi3+25S2-68
Approval year:
2008
First published:
2012
Classification of Cuproneyite
2.JB.25i
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
3.5.1.2
3 : SULFOSALTS
5 : 2.5 < ø < 3
3 : SULFOSALTS
5 : 2.5 < ø < 3
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 |
|---|---|---|
| Cney | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Cuproneyite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Cuproneyite
Metallic
Transparency:
Opaque
Colour:
Silver-grey
Hardness:
3 on Mohs scale
Hardness:
VHN25=222 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
Parallel to the c axis
Parallel to the c axis
Parting:
none
Fracture:
Irregular/Uneven
Comment:
Fracture is subparallel, perpendicular to the c axis.
Density:
7.113 g/cm3 (Calculated)
Optical Data of Cuproneyite
Anisotropism:
Moderate in air and strong in oil.
Bireflectance:
Bireflectance is perceptible in air and moderate in oil
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 400nm | 40.21% | 50.25% |
| 420nm | 41.61% | 48.13% |
| 440nm | 41.9% | 48.12% |
| 460nm | 40.47% | 47.57% |
| 470nm | 40.37% | 47.09% |
| 480nm | 40.63% | 47.17% |
| 500nm | 40.71% | 47.25% |
| 520nm | 40.18% | 46.63% |
| 540nm | 39.48% | 45.85% |
| 546nm | 39.30% | 45.74% |
| 560nm | 38.84% | 45.39% |
| 580nm | 38.38% | 44.67% |
| 589nm | 38.26% | 44.27% |
| 600nm | 38.20% | 44.46% |
| 620nm | 38.04% | 44.18% |
| 640nm | 37.84% | 43.76% |
| 650nm | 38.05% | 43.91% |
| 660nm | 37.79% | 43.59% |
| 680nm | 37.21% | 43.45% |
| 700nm | 37.72% | 43.37% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 50.25%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Greyish white
Internal Reflections:
None
Pleochroism:
Visible
Comments:
Greyish white with faint bluish tint (darkest position) to greyish white with faint yellowish tint (lightest position).
Chemistry of Cuproneyite
Mindat Formula:
Cu7Pb27Bi25S68
Element Weights:
Elements listed:
Crystallography of Cuproneyite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 37.432(8) Å, b = 4.0529(9) Å, c = 43.545(9) Å
β = 108.803°
β = 108.803°
Ratio:
a:b:c = 9.236 : 1 : 10.744
Unit Cell V:
6,253.58 ų (Calculated from Unit Cell)
Z:
1
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) |
|---|---|---|---|---|---|---|---|
| 0019214 | Cuproneyite | Ilinca G, Makovicky E, Topa D, Zagler G (2012) Cuproneyite, Cu7Pb27Bi25S68, a new mineral species from Baita Bihor, Romania The Canadian Mineralogist 50 353-370 | 2012 | skarn deposit of Baita Bihor, Romania | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.735 Å | (96) |
| 3.507 Å | (50) |
| 3.464 Å | (53) |
| 3.347 Å | (84) |
| 2.956 Å | (77) |
| 2.925 Å | (46) |
| 2.867 Å | (100) |
| 2.027 Å | (81) |
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 Cuproneyite
General Appearance of Type Material:
Irregular or short prismatic grains, of up to 300 μm in length, intergrown with lamellae and irregular patches of cosalite and Cu–Pb-rich bismuthinite derivatives.
Place of Conservation of Type Material:
Department of Mineralogy, Faculty of Geology and Geophysics, University of Bucharest, Romania (catalogue no. CATMIN 22/24).
Geological Setting of Type Material:
polymetallic mineralization related to contact metamorphism (skarn) developed around the Late Cretaceous magmatic complex at Băiţa Bihor
Associated Minerals at Type Locality:
Synonyms of Cuproneyite
Other Language Names for Cuproneyite
Dutch:Cuproneyiet
German:Cuproneyit
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 | Marrite | AgPbAsS3 |
| 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.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 Cuproneyite
mindat.org URL:
https://www.mindat.org/min-39287.html
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References for Cuproneyite
Reference List:
Ilinca, G., Makovicky, E., Topa, D., Zagler, G. (2012) Cuproneyite, Cu7Pb27Bi25S68, a new mineral species from Băiţa Bihor, Romania. The Canadian Mineralogist, 50 (2) 353-370 doi:10.3749/canmin.50.2.353
Localities for Cuproneyite
Showing 1 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.
Romania (TL) | |
| Ilinca et al. (2012) +1 other reference |
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The
Băiţa mining district, Nucet, Bihor County, Romania