Euchlorine (original) (raw)

A valid IMA mineral species - grandfathered

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About EuchlorineHide

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Colour:

Emerald-green; emerald-green in transmitted light.

Crystal System:

Monoclinic

Name:

From the Greek εΰχλωρος for "pale green," in allusion to its colour.

May form a group: "euchlorine group"; in this group the unit cell parameter a is very sensitive to the Na/K ratio.

Structurally related to fedotovite and puninite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:1416:4

aad0ccf6-2659-426e-bcd2-75bca044411a

IMA Classification of EuchlorineHide

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Approved, 'Grandfathered' (first described prior to 1959)

IMA Formula:

KNaCu3O(SO4)3

Type description reference:

Classification of EuchlorineHide

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7.BC.30

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
C : With medium-sized and large cations

30.3.1.1

30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
3 : (AB)5(XO4)3Zq

25.2.16

25 : Sulphates
2 : Sulphates of Cu and Ag

Mineral SymbolsHide

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

Symbol Source Reference
Ecr 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 EuchlorineHide

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Colour:

Emerald-green; emerald-green in transmitted light.

Cleavage:

Imperfect/Fair
Cleavage observed in two unstated directions.

Density:

3.27 g/cm3 (Measured) 3.28 g/cm3 (Calculated)

Optical Data of EuchlorineHide

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RI values:

_n_α = 1.580 _n_β = 1.605 _n_γ = 1.644

δ = 0.064

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Comments:

X = Pale grass green
Y = Grass-green
Z = Bright yellow-green

Comments:

2V moderately large.

Chemistry of EuchlorineHide

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Mindat Formula:

KNaCu3(SO4)3O

Crystallography of EuchlorineHide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 18.41(5) Å, b = 9.43(3) Å, c = 14.21(5) Å
β = 113.7(3)°

Ratio:

a:b:c = 1.952 : 1 : 1.507

Unit Cell V:

2,258.89 ų (Calculated from Unit Cell)

Morphology:

Crystals are rectangular tablets {001} and slightly elongated [100]. As incrustations.

Forms include: {010}, {001} {120}, {011}, {013}, {101}, {103}.

Comment:

Space Group: C2/a.

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0014715 Euchlorine Scordari F, Stasi F (1990) The crystal structure of euchlorine, NaKCu3O(SO4)3 Neues Jahrbuch fur Mineralogie, Abhandlungen 161 241-253 1990 Vesuvius, Italy 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
8.44 Å (100)
2.816 Å (47)
2.544 Å (45)
2.843 Å (40)
2.852 Å (37)
3.475 Å (30)
3.237 Å (25)

Geological EnvironmentHide

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Type Occurrence of EuchlorineHide

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Associated Minerals at Type Locality:

Reference:

Scacchi E (1884) Sull’euclorina, sull’eriocaleo e sul melanotallo. Rendiconto dell'Accademia delle Scienze Fisiche e Matematiche (sezione della Societa reale di Napoli) 23, 158-16

Synonyms of EuchlorineHide

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Other Language Names for EuchlorineHide

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Relationship of Euchlorine to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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7.BC. Adranosite-(Fe) (NH4)4NaFe3+2(SO4)4Cl(OH)2 Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a c d
7.BC. Adranosite (NH4)4NaAl2(SO4)4Cl(OH)2 Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_41/a c d
7.BC. D'Ansite-(Mn) Na21Mn2+(SO4)10Cl3 Iso. 43_m_ : I_43_d
7.BC. Agaite Pb3CuTeO5(OH)2(CO3) Orth. m _m_2 : P c _a_21
7.BC. D'Ansite-(Fe) Na21Fe2+(SO4)10Cl3 Iso. 43_m_ : I_43_d
7.BC. Acmonidesite (NH4,K,Pb)8NaFe2+4(SO4)5Cl8 Orth. 222 : _C_2221
7.BC. Backite Pb2AlTeO6Cl Trig. 32 : _P_312
7.BC. Hagstromite Pb8Cu2+(Te6+O6)2(CO3)Cl4 Orth. m m m _(_2/_m_2/_m_2/m ) : I b a m
7.BC. Wildcatite CaFe3+Te6+O5(OH) Trig. 3_m_ _(_32/m ) : P_31_m
7.BC. Franksousaite PbCu(Se6+O4)(OH)2 Mon. 2/m : _P_21/m
7.BC. Zincochenite Pb4Zn(OH)6(SO4)2 Tric. 1 : _P_1
7.BC. Viskontite Pb5Cu2(SO4)3(SeO3)(OH)6 Orth. m _m_2 : P m _n_21
7.BC. Chromviskontite Pb5Cu2(CrO4)3(SeO3)(OH)6 Orth. m _m_2 : P m _n_21
7.BC.05 D'Ansite Na21Mg(SO4)10Cl3 Iso. 43_m_ : I_43_m
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 Trig. 3_m_ : R_3_m
7.BC.10 Ammonioalunite (NH4)Al3(SO4)2(OH)6 Trig.
7.BC.10 Ammoniojarosite (NH4)Fe3+3(SO4)2(OH)6 Trig. 3_m_ : R_3_m
7.BC.10 Argentojarosite AgFe3+3(SO4)2(OH)6 Trig. 3_m_ : R_3_m
7.BC.10 Beaverite-(Cu) Pb(Fe3+2Cu)(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Dorallcharite TlFe3+3(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Huangite Ca0.5Al3(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Hydroniumjarosite (H3O)Fe3+3(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Jarosite KFe3+3(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Natroalunite-2c (Na,Ca0.5,K)Al3(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Natroalunite NaAl3(SO4)2(OH)6 Trig. 3_m_ : R_3_m
7.BC.10 Natrojarosite NaFe3(SO4)2(OH)6 Trig. 3_m_ : R_3_m
7.BC.10 Osarizawaite Pb(Al2Cu2+)(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Plumbojarosite Pb0.5Fe3+3(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Schlossmacherite (H3O)Al3(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Walthierite Ba0.5Al3(SO4)2(OH)6 Trig.
7.BC.10 Beaverite-(Zn) Pb(Fe3+2Zn)(SO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.10 Karlseifertite Pb(Ga2Ge)(AsO4)2(OH)6 Trig. 3_m_ _(_32/m ) : R_3_m
7.BC.15 Ye'elimite Ca4Al6(SO4)O12 Iso. 432 : _I_4132
7.BC.20 Atlasovite K(BiO)Cu6Fe3+(SO4)5O3Cl Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _P_4/n c c
7.BC.20 Nabokoite KCu7(SO4)5(Te4+O3)OCl Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _P_4/n c c
7.BC.20 Puninite Na2Cu3O(SO4)3 Mon. 2/m : _B_2/b
7.BC.25 Chlorothionite K2Cu(SO4)Cl2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
7.BC.30 Fedotovite K2Cu3(SO4)3O Mon. 2/m : _B_2/b
7.BC.35 Kamchatkite KCu3(SO4)2OCl Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
7.BC.40 Piypite K4Cu4O2(SO4)4 · (Na,Cu)Cl Tet. 4 : _I_4
7.BC.45 Klyuchevskite K3Cu3(Fe3+,Al)(SO4)4O2 Mon. 2
7.BC.45 Alumoklyuchevskite K3Cu3(Al,Fe3+)(SO4)4O2 Tric. 1 : _P_1
7.BC.45 Belousovite KZn(SO4)Cl Mon. 2/m : _P_21/b
7.BC.47 Müllerite Pb2Fe3+(Te6+O6)Cl Trig. 32 : _P_3112
7.BC.50 Caledonite Pb5Cu2(SO4)3(CO3)(OH)6 Orth. m _m_2 : P m _n_21
7.BC.50 Elasmochloite Na3Cu6BiO4(SO4)5 Mon. 2/m
7.BC.52 Eleomelanite (K2Pb)Cu4O2(SO4)4 Mon. 2/m
7.BC.55 Wherryite Pb7Cu2(SO4)4(SiO4)2(OH)2 Mon. 2/m : _B_2/m
7.BC.55 Falgarite K4(VO)3(SO4)5 Mon. 2/m : _B_2/b
7.BC.57 Krasheninnikovite KNa2CaMg(SO4)3F Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m c m
7.BC.60 Mammothite Pb6Cu4AlSb5+O2(OH)16Cl4(SO4)2 Mon. 2 : _B_2
7.BC.60 Wulffite K3NaCu4O2(SO4)4 Orth. m _m_2
7.BC.60 Parawulffite K5Na3Cu8O4(SO4)8 Mon. 2/m : _P_2/b
7.BC.62 Shuvalovite K2(Ca2Na)(SO4)3F Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
7.BC.65 Linarite PbCu(SO4)(OH)2 Mon. 2/m : _P_21/m
7.BC.65 Schmiederite Pb2Cu2(Se6+O4)(Se4+O3)(OH)4 Mon. 2/m : _P_21/m
7.BC.65 Munakataite Pb2Cu2(Se4+O3)(SO4)(OH)4 Mon. 2/m : _P_21/m
7.BC.65 Therasiaite (NH4)3KNa2Fe2+Fe3+(SO4)3Cl5 Mon. m : B b
7.BC.65 Saccoite Ca2Mn3+2F(OH)8 · 0.5(SO4) Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _P_4/n c c
7.BC.70 Chenite Pb4Cu(SO4)2(OH)6 Tric. 1 : _P_1
7.BC.75 Krivovichevite Pb3Al(OH)6(SO4)(OH) Trig. 3_m_ : R_3_c
7.BC.80 Anhydrokainite KMg(SO4)Cl

Other InformationHide

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Notes:

Partially soluble in water.

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

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References for EuchlorineHide

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Reference List:

Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York.

Siidra, Oleg I., Nazarchuk, Evgenii V., Zaitsev, Anatoly N., Lukina, Evgeniya A., Avdontseva, Evgeniya Y., Vergasova, Lidiya P, Vlasenko, Natalia S., Filatov, Stanislav K., Turner, Rick, Karpov, Gennady A. (2017) Copper oxosulphates from fumaroles of Tolbachik volcano: puninite, Na2Cu3O(SO4)3 – a new mineral species and structure refinements of kamchatkite and alumoklyuchevskite. European Journal of Mineralogy, 29 (3) 499-510 doi:10.1127/ejm/2017/0029-2619

Localities for EuchlorineHide

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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

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- 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.

El Salvador
Sonsonate Department ⓘ Izalco Volcano Amer.Min. (1985) +2 other references
Italy
Campania Metropolitan City of Naples Ercolano ⓘ Atrio del Cavallo Russo et al. (2004)
ⓘ Mount Vesuvius (TL) [Lapis 1994:5 p.13-23 +4 other references
ⓘ Vesuvius fumaroles Scacchi (1884) +3 other references
Poland
Silesian Voivodeship Wodzisław County Radlin ⓘ Marcel mine heap Ł. Kruszewski PXRD data (to be published soon)
Russia
Kamchatka Krai Milkovsky District Tolbachik Volcanic field ⓘ Great Fissure eruption (Main Fracture) Pekov (1998)
ⓘ Naboko cinder cone Nazarchuk et al. (2018)
Northern Breakthrough (North Breach) ⓘ First scoria cone Pekov (1998)
ⓘ Second scoria cone Pekov et al. (2013)
ⓘ Arsenatnaya fumarole Pekov et al. (2014) +1 other reference
ⓘ Novaya fumarole Vergasova et al. (2000)
ⓘ Treschina fumarole Bykova et al. (1998)
ⓘ Yadovitaya fumarole Pekov (1998) +3 other references
Plosky Tolbachik Volcano ⓘ 2012-2013 Fissure Tolbachik Eruption site Sharygin et al. (2018)
Sakhalin Oblast Kuril Islands (Kurile Islands) Severo-Kurilsky District Atlasov Island Alaid volcano ⓘ Olimpiyskiy Fissure Vergasova et al. (1977) +1 other reference