Metavoltine (original) (raw)
A valid IMA mineral species - grandfathered
About MetavoltineHide
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Formula:
K2Na6Fe2+Fe3+6O2(SO4)12 · 18H2O
Colour:
Yellowish brown, orange-brown, greenish brown
Name:
From the Greek μετά = "with" and voltaite, in allusion to the species' original association with voltaite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2696:9
365b0283-7a1d-46ac-a9ee-99889a28a0ce
IMA Classification of MetavoltineHide
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Approved, 'Grandfathered' (first described prior to 1959)
Classification of MetavoltineHide
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7.DF.35
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
29.4.6.1
29 : HYDRATED ACID AND NORMAL SULFATES
4 : AmBn(XO4)p·xH2O, with (m+n):p < 3:2 and > 1:1
25.11.12
25 : Sulphates
11 : Sulphates of Fe and other metals
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 |
|---|---|---|
| Mvt | 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 MetavoltineHide
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Colour:
Yellowish brown, orange-brown, greenish brown
Cleavage:
Perfect
Perfect on {0001}.
Density:
2.51 g/cm3 (Measured) 2.435 g/cm3 (Calculated)
Comment:
Drensity of synthetic material 2.396.
Optical Data of MetavoltineHide
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RI values:
_n_ω = 1.588 - 1.595 _n_ε = 1.573 - 1.581
δ = 0.015
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Comments:
Dichroic:
La Compania material:
O = Dark yellow, E = pale yellow
Chuquicamata material:
O = Brown. E = Light greenish yellow
Chilean material (not specified):
O = Dark yellow, E = Light yellow
Peruvian material (not specified):
O = Deep or
Chemistry of MetavoltineHide
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Mindat Formula:
K2Na6Fe2+Fe3+6O2(SO4)12 · 18H2O
Chemical AnalysisHide
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Crystallography of MetavoltineHide
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Cell Parameters:
a = 9.575(5) Å, c = 18.17(1) Å
Unit Cell V:
1,442.66 ų (Calculated from Unit Cell)
Morphology:
Crystals tabular {0001} with a hexagonal outline. Commonly tiny. As granular or scaly aggregates.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0015661 | Metavoltine | Giacovazzo C, Scordari F, Todisco A, Menchetti S (1976) Crystal structure model for metavoltine from Sierra Gorda Tschermaks Mineralogische und Petrographische Mitteilungen 23 155-166 | 1976 | Sierra Gorda, Chile | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 18.28 Å | (33) |
| 9.12 Å | (100) |
| 3.300 Å | (37) |
| 3.087 Å | (23) |
| 2.899 Å | (30) |
| 2.375 Å | (23) |
| 2.002 Å | (37) |
Geological EnvironmentHide
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Geological Setting:
Alteration product of pyrite in arid climates, fumaroles, and post mining oxidation product.
Type Occurrence of MetavoltineHide
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Synonyms of MetavoltineHide
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Other Language Names for MetavoltineHide
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Varieties of MetavoltineHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 7.DF. | Aldridgeite | (Cd,Ca)(Cu,Zn)4(SO4)2(OH)6 · 3H2O | Mon. 2/m : _B_2/b |
|---|---|---|---|
| 7.DF. | Chromschieffelinite | Pb10Te6+6O20(OH)14(CrO4)(H2O)5 | Orth. 222 : _C_2221 |
| 7.DF. | Alcaparrosaite | K3Ti4+Fe3+(SO4)4O(H2O)2 | Mon. 2/m : _B_2/b |
| 7.DF. | Bairdite | Pb2Cu2+4Te6+2O10(OH)2(SO4) · H2O | Mon. 2/m : _P_21/b |
| 7.DF. | Carlsonite | (NH4)5Fe3+3O(SO4)6 · 7H2O | Tric. 1 : _P_1 |
| 7.DF. | Ammoniomathesiusite | (NH4)5(UO2)4(SO4)4(VO5) · 4H2O | Tet. 4/m : _P_4/n |
| 7.DF. | Erssonite | Mg7Fe3+2(OH)18[Ca(H2O)6](SO4)2 · 12H2O | Trig. 3_m_ _(_32/m ) : _P_3_c_1 |
| 7.DF. | Flaggite | Pb4Cu2+4Te6+2(SO4)2O11(OH)2(H2O) | Tric. 1 : _P_1 |
| 7.DF. | Poellmannite | Ca6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O | Trig. 3 : _R_3 |
| 7.DF. | Haywoodite | [Pb(H2O)10][Zn12(OH)20(H2O)(SO4)3] | Tric. 1 : _P_1 |
| 7.DF. | Cherokeeite | [Pb2Zn(OH)4](SO4) · H2O | Mon. 2/m |
| 7.DF. | Cuprocherokeeite | [Pb8Zn3Cu2+(OH)16](SO4)4 · 4H2O | Mon. 2/m |
| 7.DF. | Tzeferisite | CaZn8(SO4)2(OH)12Cl2(H2O)9 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 7.DF.05 | Uklonskovite | NaMg(SO4)F · 2H2O | Mon. 2/m : _P_21/m |
| 7.DF.10 | Kainite | KMg(SO4)Cl · 3H2O | Mon. 2/m : _B_2/m |
| 7.DF.10 | Kaliochalcite | KCu2(SO4)2[(OH)(H2O)] | Mon. 2/m : _B_2/m |
| 7.DF.15 | Natrochalcite | NaCu2(SO4)2(OH) · 2H2O | Mon. 2/m : _B_2/m |
| 7.DF.17 | Unnamed (Ba-Sb Silicate-Sulphate-Hydroxide-Hydrate) | Ba3Sb5+[(Si,S)O3(OH)]2(OH,O)6 · 3H2O | Trig. 3 : _P_3 |
| 7.DF.17 | Genplesite | Ca3Sn(SO4)2(OH)6 · 3H2O | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 7.DF.20 | Metasideronatrite | Na2Fe(SO4)2(OH) · H2O | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 7.DF.20 | Sideronatrite | Na2Fe(SO4)2(OH) · 3H2O | Orth. 222 : _P_212121 |
| 7.DF.25 | Despujolsite | Ca3Mn4+(SO4)2(OH)6 · 3H2O | Hex. 6_m_2 : P_62_c |
| 7.DF.25 | Fleischerite | Pb3Ge(SO4)2(OH)6 · 3H2O | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 7.DF.25 | Schaurteite | Ca3Ge(SO4)2(OH)6 · 4H2O | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 7.DF.25 | Mallestigite | Pb3Sb5+(SO4)(AsO4)(OH)6 · 3H2O | Hex. 6 : _P_63 |
| 7.DF.30 | Slavíkite | (H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2O | Trig. 3 : _R_3 |
| 7.DF.40 | Lannonite | Mg2Ca4Al4(SO4)8F8 · 24H2O | Tet. 4/m : _I_4/m |
| 7.DF.40 | Vlodavetsite | AlCa2(SO4)2F2Cl · 4H2O | Tet. 4/m : _I_4/m |
| 7.DF.45 | Peretaite | Ca(SbO)4(SO4)2(OH)2 · 2H2O | Mon. 2/m : _B_2/b |
| 7.DF.50 | Gordaite | NaZn4(SO4)(OH)6Cl · 6H2O | Trig. 3 : _P_3 |
| 7.DF.50 | Calamaite | Na2TiO(SO4)2 · 2H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : I b a m |
| 7.DF.52 | Scordariite | K8(Fe3+0.67◻0.33)[Fe3+3O(SO4)6]2 · 14H2O | Trig. 3 : _R_3 |
| 7.DF.52 | Huizingite-(Al) | [(NH4)9(SO4)2][(Al,Fe3+)3(OH)2(H2O)4(SO4)6] | Tric. 1 : _P_1 |
| 7.DF.55 | Clairite | (NH4)2Fe3(SO4)4(OH)3 · 3H2O | Tric. |
| 7.DF.55 | Giacovazzoite | K5Fe3+3O(SO4)6 · 10H2O | Mon. 2/m : _P_21/b |
| 7.DF.57 | Magnanelliite | K3Fe3+2(SO4)4(OH)(H2O)2 | Mon. 2/m : _B_2/b |
| 7.DF.60 | Arzrunite | Cu4Pb2(SO4)(OH)4Cl6 · 2H2O (?) | Orth. |
| 7.DF.60 | Evdokimovite | Tl4(VO)3(SO4)5(H2O)5 | Mon. 2/m |
| 7.DF.62 | Bridgesite-(Ce) | CaCe2Cu6(SO4)4(OH)12 · 8H2O | Mon. 2/m : _B_2/m |
| 7.DF.65 | Elyite | Pb4Cu(SO4)O2(OH)4 · H2O | Mon. 2/m : _P_21/b |
| 7.DF.70 | Lautenthalite | PbCu4(SO4)2(OH)6 · 3H2O | Mon. 2/m : _P_21/b |
| 7.DF.70 | Yecoraite | Fe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O | |
| 7.DF.75 | Riomarinaite | Bi(SO4)(OH) · H2O | Mon. 2/m |
| 7.DF.80 | Dukeite | Bi3+24Cr6+8O57(OH)6 · 3H2O | Trig. 3_m_ : P_31_c |
Other InformationHide
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Notes:
Partly soluble in water. Slowly decomposed by dilute acids.
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 MetavoltineHide
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References for MetavoltineHide
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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.**pp.619-621 - as Metavoltine
Localities for MetavoltineHide
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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.