Eleomelanite
A valid IMA mineral species
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About Eleomelanite
Formula:
(K2Pb)Cu4O2(SO4)4
Colour:
Black
Lustre:
Vitreous, Greasy
Specific Gravity:
3.790 (Calculated)
Crystal System:
Monoclinic
Name:
The name is derived from the Greek ελαιν (eleon), oil, and μλας (melas), black, due to its black color and oleaginous luster on crystal faces that are uncommon for sulfate minerals.
Unique combination of elements. Related to wulffite and parawulffite (e.g., in stoichiometry). Compare palmierite.
Novel structure type but has common structural features with klyuchevskite, alumoklyuchevskite, wulffite, parawulffite, and piypite.
Novel structure type but has common structural features with klyuchevskite, alumoklyuchevskite, wulffite, parawulffite, and piypite.
Unique Identifiers
Mindat ID:
47609
Long-form identifier:
mindat:1:1:47609:6
GUID
(UUID V4):
(UUID V4):
f34219cc-c7ae-4190-8873-50787ef07829
IMA Classification of Eleomelanite
Approved
Approval year:
2016
First published:
2020
Type description reference:
Pekov, Igor V., Zubkova, Natalia V., Agakhanov, Atali A., Chukanov, Nikita V., Belakovskiy, Dmitry I., Sidorov, Evgeny G., Britvin, Sergey N., Turchkova, Anna G., Pushcharovsky, Dmitry Yu. (2020) Eleomelanite, (K2Pb)Cu4O2(SO4)4, a new mineral species from the Tolbachik Volcano, Kamchatka, Russia. The Canadian Mineralogist, 58 (5) 625-636 doi:10.3749/canmin.2000032
Classification of Eleomelanite
7.BC.52
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
C : With medium-sized and large cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
C : With medium-sized and large cations
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 |
---|---|---|
Elm | 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 Eleomelanite
Vitreous, Greasy
Transparency:
Translucent
Comment:
Oleaginous on crystal faces and vitreous on a cleavage surfaces
Colour:
Black
Density:
3.790 g/cm3 (Calculated)
Optical Data of Eleomelanite
Type:
Biaxial (-)
RI values:
nα = 1.646(3) nβ = 1.715(6) nγ = 1.734(6)
2V:
Measured: 60° (15)
Max Birefringence:
δ = 0.088
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Chemistry of Eleomelanite
Mindat Formula:
(K2Pb)Cu4O2(SO4)4
Crystallography of Eleomelanite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 9.3986(3) Å, b = 4.8911(1) Å, c = 18.2293(5) Å
β = 104.409(3)°
β = 104.409(3)°
Ratio:
a:b:c = 1.922 : 1 : 3.727
Unit Cell V:
811.63 ų (Calculated from Unit Cell)
Comment:
P21/n
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
9.07 Å | (63) |
7.38 Å | (44) |
3.699 Å | (78) |
3.658 Å | (100) |
3.173 Å | (40) |
2.915 Å | (35) |
2.683 Å | (36) |
2.576 Å | (51) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
45a : [Sulfates, arsenates, selenates, antimonates] |
Type Occurrence of Eleomelanite
General Appearance of Type Material:
Interrupted crusts up to 6 mm across and up to 0.3 mm thick consisting of equant, prismatic, or tabular crystals or grains up to 0.3 mm.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow, Russia, number 95347.
Geological Setting of Type Material:
Fumarole
Associated Minerals at Type Locality:
Reference:
Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Chukanov, N.V., Belakovskiy, D.I., Sidorov, E.G., Britvin, S.N., Turchkova, A.G., Pushcharovsky, D.Y. (2020) Eleomelanite, (K2Pb)Cu4O2(SO4)4, a new mineral species from the Tolbachik Volcano, Kamchatka, Russia. The Canadian Mineralogist: 58(5): 625–636.
Synonyms of Eleomelanite
Common Associates
Associated Minerals Based on Photo Data:
3 photos of Eleomelanite associated with Euchlorine | KNaCu3(SO4)3O |
Related Minerals - Strunz-mindat Grouping
7.BC. | Adranosite-(Fe) | (NH4)4NaFe3+2(SO4)4Cl(OH)2 |
7.BC. | Adranosite | (NH4)4NaAl2(SO4)4Cl(OH)2 |
7.BC. | D'Ansite-(Mn) | Na21Mn2+(SO4)10Cl3 |
7.BC. | Agaite | Pb3CuTeO5(OH)2(CO3) |
7.BC. | D'Ansite-(Fe) | Na21Fe2+(SO4)10Cl3 |
7.BC. | Acmonidesite | (NH4,K,Pb)8NaFe2+4(SO4)5Cl8 |
7.BC. | Backite | Pb2AlTeO6Cl |
7.BC. | Hagstromite | Pb8Cu2+(Te6+O6)2(CO3)Cl4 |
7.BC. | Wildcatite | CaFe3+Te6+O5(OH) |
7.BC. | Franksousaite | PbCu(Se6+O4)(OH)2 |
7.BC. | Zincochenite | Pb4Zn(OH)6(SO4)2 |
7.BC. | Viskontite | Pb5Cu2(SO4)3(SeO3)(OH)6 |
7.BC.05 | D'Ansite | Na21Mg(SO4)10Cl3 |
7.BC.07 | Apatelite | Fe3(SO4)2(OH)5 · 0.5H2O |
7.BC.07 | Unnamed (Ba-Fe Vanadate) | Ba, Fe, V, O, H |
7.BC.10 | Alunite | KAl3(SO4)2(OH)6 |
7.BC.10 | Ammonioalunite | (NH4)Al3(SO4)2(OH)6 |
7.BC.10 | Ammoniojarosite | (NH4)Fe3+3(SO4)2(OH)6 |
7.BC.10 | Argentojarosite | AgFe3+3(SO4)2(OH)6 |
7.BC.10 | Beaverite-(Cu) | Pb(Fe3+2Cu)(SO4)2(OH)6 |
7.BC.10 | Dorallcharite | TlFe3+3(SO4)2(OH)6 |
7.BC.10 | Huangite | Ca0.5Al3(SO4)2(OH)6 |
7.BC.10 | Hydroniumjarosite | (H3O)Fe3+3(SO4)2(OH)6 |
7.BC.10 | Jarosite | KFe3+3(SO4)2(OH)6 |
7.BC.10 | Natroalunite-2c | (Na,Ca0.5,K)Al3(SO4)2(OH)6 |
7.BC.10 | Natroalunite | NaAl3(SO4)2(OH)6 |
7.BC.10 | Natrojarosite | NaFe3(SO4)2(OH)6 |
7.BC.10 | Osarizawaite | Pb(Al2Cu2+)(SO4)2(OH)6 |
7.BC.10 | Plumbojarosite | Pb0.5Fe3+3(SO4)2(OH)6 |
7.BC.10 | Schlossmacherite | (H3O)Al3(SO4)2(OH)6 |
7.BC.10 | Walthierite | Ba0.5Al3(SO4)2(OH)6 |
7.BC.10 | Beaverite-(Zn) | Pb(Fe3+2Zn)(SO4)2(OH)6 |
7.BC.15 | Ye'elimite | Ca4Al6(SO4)O12 |
7.BC.20 | Atlasovite | K(BiO)Cu6Fe3+(SO4)5O3Cl |
7.BC.20 | Nabokoite | KCu7(SO4)5(Te4+O3)OCl |
7.BC.20 | Puninite | Na2Cu3O(SO4)3 |
7.BC.25 | Chlorothionite | K2Cu(SO4)Cl2 |
7.BC.30 | Euchlorine | KNaCu3(SO4)3O |
7.BC.30 | Fedotovite | K2Cu3(SO4)3O |
7.BC.35 | Kamchatkite | KCu3(SO4)2OCl |
7.BC.40 | Piypite | K4Cu4O2(SO4)4 · (Na,Cu)Cl |
7.BC.45 | Klyuchevskite | K3Cu3(Fe3+,Al)(SO4)4O2 |
7.BC.45 | Alumoklyuchevskite | K3Cu3(Al,Fe3+)(SO4)4O2 |
7.BC.45 | Belousovite | KZn(SO4)Cl |
7.BC.47 | Müllerite | Pb2Fe3+(Te6+O6)Cl |
7.BC.50 | Caledonite | Pb5Cu2(SO4)3(CO3)(OH)6 |
7.BC.50 | Elasmochloite | Na3Cu6BiO4(SO4)5 |
7.BC.55 | Wherryite | Pb7Cu2(SO4)4(SiO4)2(OH)2 |
7.BC.55 | Falgarite | K4(VO)3(SO4)5 |
7.BC.57 | Krasheninnikovite | KNa2CaMg(SO4)3F |
7.BC.60 | Mammothite | Pb6Cu4AlSb5+O2(OH)16Cl4(SO4)2 |
7.BC.60 | Wulffite | K3NaCu4O2(SO4)4 |
7.BC.60 | Parawulffite | K5Na3Cu8O4(SO4)8 |
7.BC.62 | Shuvalovite | K2(Ca2Na)(SO4)3F |
7.BC.65 | Linarite | PbCu(SO4)(OH)2 |
7.BC.65 | Schmiederite | Pb2Cu2(Se6+O4)(Se4+O3)(OH)4 |
7.BC.65 | Munakataite | Pb2Cu2(Se4+O3)(SO4)(OH)4 |
7.BC.65 | Therasiaite | (NH4)3KNa2Fe2+Fe3+(SO4)3Cl5 |
7.BC.65 | Saccoite | Ca2Mn3+2F(OH)8 · 0.5(SO4) |
7.BC.70 | Chenite | Pb4Cu(SO4)2(OH)6 |
7.BC.75 | Krivovichevite | Pb3Al(OH)6(SO4)(OH) |
7.BC.80 | Anhydrokainite | KMg(SO4)Cl |
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 Eleomelanite
mindat.org URL:
https://www.mindat.org/min-47609.html
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References for Eleomelanite
Reference List:
Pekov, Igor V., Zubkova, Natalia V., Agakhanov, Atali A., Chukanov, Nikita V., Belakovskiy, Dmitry I., Sidorov, Evgeny G., Britvin, Sergey N., Turchkova, Anna G., Pushcharovsky, Dmitry Yu. (2020) Eleomelanite, (K2Pb)Cu4O2(SO4)4, a new mineral species from the Tolbachik Volcano, Kamchatka, Russia. The Canadian Mineralogist, 58 (5) 625-636 doi:10.3749/canmin.2000032
Pekov, Igor V., Zubkova, Natalia V., Agakhanov, Atali A., Chukanov, Nikita V., Belakovskiy, Dmitry I., Sidorov, Evgeny G., Britvin, Sergey N., Turchkova, Anna G., Pushcharovsky, Dmitry Yu. (2020) Eleomelanite, (K2Pb)Cu4O2(SO4)4, a new mineral species from the Tolbachik Volcano, Kamchatka, Russia. The Canadian Mineralogist, 58 (5) 625-636 doi:10.3749/canmin.2000032
Localities for Eleomelanite
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).
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.
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Pekov, Igor V., Zubkova, Natalia V., Agakhanov, Atali A., Chukanov, Nikita V., Belakovskiy, Dmitry I., Sidorov, Evgeny G., Britvin, Sergey N., Turchkova, Anna G., Pushcharovsky, Dmitry Yu. (2020) Eleomelanite, (K2Pb)Cu4O2(SO4)4, a new mineral species from the Tolbachik Volcano, Kamchatka, Russia. The Canadian Mineralogist, 58 (5) 625-636 doi:10.3749/canmin.2000032 |
Quick NavTopAbout EleomelaniteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia