Named by W.G. Mumme and L. Žák in 1985 in honor of Karel Padĕra (5 May, 1923 - 2010), Czech mineralogist, Charles University, Prague who first worked on the mineral.

Type Locality:

ⓘ Băiţa mining district, Nucet, Bihor County, Romania

This page provides mineralogical data about Padĕraite.

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Unique IdentifiersHide

Mindat ID:

3059

Long-form identifier:

mindat:1:1:3059:1

GUID
(UUID V4):

2216a33e-904d-4dec-bd68-647958d9a218

IMA Classification of PadĕraiteHide

IMA status:

Approved

IMA Formula:

Cu₇[(Cu,Ag)_0.33Pb_1.33Bi_11.33]S₂₂

Type description reference:

Mumme, W.G., Žák, L. (1985) Padĕraite, Cu5.9Ag1.3Pb1.6Bi11.2S22, a new mineral of the cuprobismutite-hodrushite group. Neues Jahrbuch für Mineralogie, Monatshefte: 1985(12): 557-567.

Classification of PadĕraiteHide

Strunz-mindat (2024):

2.JA.10e

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

Dana 8th ed.:

3.8.4.2

3 : SULFOSALTS
8 : 1 < ø < 2

Hey's CIM Ref.:

5.7.45

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference
Pdĕ	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Pad	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of PadĕraiteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Grey

Comment:

Steel-gray on fresh fractures, turning brown to black;

Hardness:

4 on Mohs scale

Fracture:

Irregular/Uneven

Density:

6.80(10) g/cm³ (Calculated)

Optical Data of PadĕraiteHide

Anisotropism:

moderate

Colour in reflected light:

creamy white

Chemistry of PadĕraiteHide

Mindat Formula:

Cu₇[(Cu,Ag)_0.33Pb_1.33Bi_11.33]S₂₂

Cook & Ciobanu (2003) suggest the formula Cu₇(Ag_0.4Pb_1.2)_∑1.6Bi_11.4S₂₂

Elements listed:

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

Crystallography of PadĕraiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

P2₁/m

Setting:

P2₁/m

Cell Parameters:

a = 28.423(3) Å, b = 3.9426(4) Å, c = 17.573(2) Å
β = 105.525(2)°

Ratio:

a:b:c = 7.209 : 1 : 4.457

Unit Cell V:

1,897.39 Å³ (Calculated from Unit Cell)

Morphology:

Platy fragments, in granular to parallel fibrous aggregates, to several mm.

Comment:

Silver free

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.06 Å	(100)
3.63 Å	(74)
3.21 Å	(61)
2.85 Å	(43)
2.66 Å	(38)
3.18 Å	(34)
2.19 Å	(30)

Comments:

Calculated from structure.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of PadĕraiteHide

Type Locality:

ⓘ Băiţa mining district, Nucet, Bihor County, Romania

Place of Conservation of Type Material:

Charles University, Prague, Czech Republic, 11329; National Museum of Natural History, Washington, D.C., USA, 164244.

Associated Minerals at Type Locality:

Hammarite	Pekoite	Bismuthinite	Cuprobismutite	Hodrušite
Chalcopyrite	Grossular	Andradite

Reference:

Mumme, W.G., Žák, L. (1985) Padĕraite, Cu5.9Ag1.3Pb1.6Bi11.2S22, a new mineral of the cuprobismutite-hodrushite group. Neues Jahrbuch für Mineralogie, Monatshefte: 1985(12): 557-567.

Other Language Names for PadĕraiteHide

German:Paderait

Russian:Падераит

Simplified Chinese:帕德矿

Spanish:Paderaita

Traditional Chinese:帕德礦

Related Minerals - Strunz-mindat Grouping Hide

2.JA.	Ferdowsiite	Ag₈(Sb₅As₃)S₁₆	Mon. 2/m : P2₁/b
2.JA.	Sangenaroite	Ag₈(Sb_8-xAs_x)S_Σ16	Mon. 2/m
2.JA.	Luboržákite	Mn₂AsSbS₅	Mon. 2/m : B2/m
2.JA.05e	Benjaminite	Ag₃Bi₇S₁₂	Mon. 2/m : B2/m
2.JA.05g	Borodaevite	Ag₅(Bi,Pb,Fe)₈(Sb,Bi)₂S₁₇	Mon.
2.JA.05a	Cupropavonite	Cu_0.9Ag_0.5Pb_0.6Bi_2.5S₅	Mon. 2/m : B2/m
2.JA.05i	Livingstonite	HgSb₄S₆(S₂)	Mon. 2/m : B2/b
2.JA.05d	Makovickyite	Cu_1.12Ag_0.81Pb_0.27Bi_5.35S₉	Mon. 2/m
2.JA.05f	Mummeite	Cu_0.58Ag_3.11Pb_1.10Bi_6.65S₁₃	Mon.
2.JA.05a	Pavonite	AgBi₃S₅	Mon. 2/m : B2/m
2.JA.05b	Grumiplucite	HgBi₂S₄	Mon. 2/m : B2/m
2.JA.05h	Mozgovaite	PbBi₄S₇	Orth. mmm (2/m 2/m 2/m)
2.JA.05d	Cupromakovickyite	Cu₄AgPb₂Bi₉S₁₈	Mon. 2/m : B2/m
2.JA.05c	Kudriavite	(Cd,Pb)Bi₂S₄	Mon. 2/m : B2/m
2.JA.05a	Cupromakopavonite	Ag₃Cu₈Pb₄Bi₁₉S₃₈	Mon. 2/m : B2/m
2.JA.05	Dantopaite	Ag₅Bi₁₃S₂₂	Mon. 2/m : B2/m
2.JA.05	Selenodantopaite	Ag₅Bi₁₃Se₂₂	Mon. 2/m : B2/m
2.JA.10a	Cuprobismutite	Cu₈AgBi₁₃S₂₄	Mon. 2/m : B2/m
2.JA.10c	Hodrušite	Cu₈Bi₁₂S₂₂	Mon. 2/m
2.JA.10d	Pizgrischite	(Cu,Fe)Cu₁₄PbBi₁₇S₃₅	Mon. 2/m : B2/m
2.JA.10b	Kupčíkite	Cu_3.4Fe_0.6Bi₅S₁₀	Mon. 2/m : B2/m
2.JA.15	Schapbachite	Ag_0.4Pb_0.2Bi_0.4S	Iso. m3m (4/m 3 2/m) : Fm3m
2.JA.15	Cuboargyrite	AgSbS₂	Iso. m3m (4/m 3 2/m)
2.JA.20	Bohdanowiczite	AgBiSe₂	Trig. 3m (3 2/m) : P3m1
2.JA.20	Matildite	AgBiS₂	Trig. 3 2 : P3₁ 2 1
2.JA.20	Volynskite	AgBiTe₂	Trig. 3m (3 2/m) : P3m1

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 PadĕraiteHide

mindat.org URL:

https://www.mindat.org/min-3059.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

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References for PadĕraiteHide

Reference List:

Mumme, W.G., Žák, L. (1985) Padĕraite, Cu5.9Ag1.3Pb1.6Bi11.2S22, a new mineral of the cuprobismutite-hodrushite group. Neues Jahrbuch für Mineralogie, Monatshefte: 1985(12): 557-567.

Mumme, W.G. (1986) The crystal structure of paderaite, a mineral of the cuprobismutite series. The Canadian Mineralogist: 24: 513-521.

Hawthorne, F.C., Bladh, K.W., Burke, E.A.J., Grew, E.S., Langley, R.H., Puciewicz, J., Roberts, A.C., Schedler, R.A., Shigley, J.E., Vanko, D.A. (1987) New mineral names. American Mineralogist: 72: 222-230.

Cook, N.J., Ciobanu, C.L. (2003) Lamellar minerals of the cuprobismutite series and related paděraite: A new occurrence and implications. Canadian Mineralogist: 41: 441-456.

Ciobanu, C. L.; Pring, A.; Cook, N. J. (2004): Micron- to nano-scale intergrowths among members of the cuprobismutite series and paderaite: HRTEM and microanalytical evidence. Mineralogical Magazine 68, 279-300.

Topa, D., Makovicky, E. (2006) The crystal structure of paderaite, Cu₇(X_0.33Pb_1.33Bi_11.33)_Σ13S₂₂, with X = Cu or Ag: new data and interpretation. The Canadian Mineralogist, 44 (2) 481-495 doi:10.2113/gscanmin.44.2.481

Locock, A.J., Ercit, T.S., Kjellman, J., Piilonen, C. (2006) New mineral names. American Mineralogist: 91: 1945-1954.

Izumino, Y., Nakashima, K., Nagashima, M. (2014) Cuprobismutite group minerals (cuprobismutite, hodrušhite, kupčíkite and padĕrite), other Bi-sulfosalts and Bi-tellurides from the Obari mine, Yamagata Prefecture, Japan. Journal of Mineralogical and Petrological Sciences: 109: 177-190.

(2023) Padĕraite. Handbook of Mineralogy. Mineralogical Society of America

Localities for PadĕraiteHide

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.

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.


China
Inner Mongolia Chifeng City (Ulanhad League; Chifeng Prefecture) Bairin Left Banner (Balin Zuoqi) ⓘ Baiyinnuo'er Pb-Zn-polymetallic deposit (Baiyinnuo Pb-Zn-polymetallic deposit)	Dequan Zhang et al. (1991)
Yunnan Chuxiong Yao'an County ⓘ Yao'an Au-Ag deposit	Zhou et al. (2018)

Japan
Yamagata Prefecture ⓘ Ohari mine (Obari mine)	Izumino et al. (2014)

North Macedonia
Radoviš Municipality ⓘ Bučim Mine (Bucim Mine; Buchim Mine; Bučim deposit)	Petrunov et al. (2001)

Romania (TL)
Bihor County Nucet ⓘ Băiţa mining district (TL)	Neues Jahrb.Min. (1985) +1 other reference
ⓘ Blidar deposit	Shimizu et al. (1998)
ⓘ Secundar Contact deposit	Shimizu et al. (1998)
ⓘ Valea Seacă	Cook et al. (2002)
Caraş-Severin County ⓘ Ocna de Fier-Dognecea District	Cook et al. (2002)
ⓘ Ocna de Fier	minerals-of-the-carpathians.eu (2008)
ⓘ Paulus Mine	Ciobanu +3 other references

Slovakia
Banská Bystrica Region Žarnovica District Hodruša-Hámre ⓘ Hodruša-Hámre mines	Kodě +1 other reference
ⓘ Rozália Mine	Jeleň et al. (2012)

South Africa
Northern Cape Namakwa District Municipality Khâi-Ma Local Municipality Aggeneys ⓘ Black Mountain (Swartberg mine)	Topa et al. (2006)

USA
Washington Snohomish County Silverton Mining District Marten Creek ⓘ Silver Coin claim	Microprobe on polished section

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Padĕraite