Yecoraite
A valid IMA mineral species
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About Yecoraite
Yecora, Sonora, Mexico
Formula:
Fe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O
Colour:
Yellow, orange to brown, yellow-brown
Lustre:
Resinous
Hardness:
3
Specific Gravity:
5.59
Name:
Named after the community of Yecora, Sonora, Mexico, near the discovery locality of San Martin de Porres Mine.
This page provides mineralogical data about Yecoraite.
Unique Identifiers
Mindat ID:
4358
Long-form identifier:
mindat:1:1:4358:4
GUID
(UUID V4):
(UUID V4):
80f6ad1c-bbe4-4c9a-885c-ececc532725a
IMA Classification of Yecoraite
Approved
IMA Formula:
Fe3+3Bi5O9(Te4+O3)(Te6+O4)2 · 9H2O
Approval year:
1983
First published:
1985
Classification of Yecoraite
7.DF.70
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
34.8.6.1
34 : SELENITES, TELLURITES AND SULFITES
8 : Compound Selenites, Tellurites and Sulfites
34 : SELENITES, TELLURITES AND SULFITES
8 : Compound Selenites, Tellurites and Sulfites
28.4.17
28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
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 |
|---|---|---|
| Yec | 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 Yecoraite
Resinous
Transparency:
Translucent
Colour:
Yellow, orange to brown, yellow-brown
Hardness:
3 on Mohs scale
Fracture:
Conchoidal
Comment:
masses exhibit conchoidal fracture
Density:
5.59(11) g/cm3 (Measured)
Optical Data of Yecoraite
Type:
Uniaxial (+)
RI values:
nω = 1.812 nε = 1.824
Max Birefringence:
δ = 0.012
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:
Very High
Chemistry of Yecoraite
Mindat Formula:
Fe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O
Crystallography of Yecoraite
Morphology:
Fibrous
Comment:
Tetragonal or hexagonal
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.743 Å | (100) |
| 3.212 Å | (70) |
| 5.45 Å | (40) |
| 3.722 Å | (40) |
| 2.962 Å | (40) |
| 1.940 Å | (30) |
| 1.625 Å | (30) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47e : [Vanadates, chromates, manganates] |
Type Occurrence of Yecoraite
General Appearance of Type Material:
Resinous masses attached tetradymite. The surfaces of the masses are either smooth, highly irregular, or pitted and cavernous.
Place of Conservation of Type Material:
National History Museum, London 1984,479
Geological Setting of Type Material:
Oxidation product of tetradymite and pyrite.
Associated Minerals at Type Locality:
Reference:
Williams, S.A., Cesbron, F.P. (1985) Yecoraite Fe3Bi5(TeO3)(TeO4)2O9·nH2O a new mineral from Sonora, Mexico. Boletín de Mineralogía: 1: 10-16.
Synonyms of Yecoraite
Other Language Names for Yecoraite
Common Associates
Associated Minerals Based on Photo Data:
| 15 photos of Yecoraite associated with Tetradymite | Bi2Te2S |
| 7 photos of Yecoraite associated with Quartz | SiO2 |
| 3 photos of Yecoraite associated with Tsumoite | BiTe |
| 3 photos of Yecoraite associated with Gold | Au |
| 1 photo of Yecoraite associated with Montanite | Bi2(TeO6) · nH2O |
| 1 photo of Yecoraite associated with Anatase | TiO2 |
| 1 photo of Yecoraite associated with Rock Crystal | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 7.DF. | Aldridgeite | (Cd,Ca)(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| 7.DF. | Chromschieffelinite | Pb10Te6+6O20(OH)14(CrO4)(H2O)5 |
| 7.DF. | Alcaparrosaite | K3Ti4+Fe3+(SO4)4O(H2O)2 |
| 7.DF. | Bairdite | Pb2Cu2+4Te6+2O10(OH)2(SO4) · H2O |
| 7.DF. | Carlsonite | (NH4)5Fe3+3O(SO4)6 · 7H2O |
| 7.DF. | Ammoniomathesiusite | (NH4)5(UO2)4(SO4)4(VO5) · 4H2O |
| 7.DF. | Erssonite | Mg7Fe3+2(OH)18[Ca(H2O)6](SO4)2 · 12H2O |
| 7.DF. | Flaggite | Pb4Cu2+4Te6+2(SO4)2O11(OH)2(H2O) |
| 7.DF. | Poellmannite | Ca6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| 7.DF. | Haywoodite | [Pb(H2O)10][Zn12(OH)20(H2O)(SO4)3] |
| 7.DF. | Cherokeeite | [Pb2Zn(OH)4](SO4) · H2O |
| 7.DF. | Cuprocherokeeite | [Pb8Zn3Cu2+(OH)16](SO4)4 · 4H2O |
| 7.DF. | Tzeferisite | CaZn8(SO4)2(OH)12Cl2(H2O)9 |
| 7.DF.05 | Uklonskovite | NaMg(SO4)F · 2H2O |
| 7.DF.10 | Kainite | KMg(SO4)Cl · 3H2O |
| 7.DF.10 | Kaliochalcite | KCu2(SO4)2[(OH)(H2O)] |
| 7.DF.15 | Natrochalcite | NaCu2(SO4)2(OH) · 2H2O |
| 7.DF.17 | Unnamed (Ba-Sb Silicate-Sulphate-Hydroxide-Hydrate) | Ba3Sb5+[(Si,S)O3(OH)]2(OH,O)6 · 3H2O |
| 7.DF.17 | Genplesite | Ca3Sn(SO4)2(OH)6 · 3H2O |
| 7.DF.20 | Metasideronatrite | Na2Fe(SO4)2(OH) · H2O |
| 7.DF.20 | Sideronatrite | Na2Fe(SO4)2(OH) · 3H2O |
| 7.DF.25 | Despujolsite | Ca3Mn4+(SO4)2(OH)6 · 3H2O |
| 7.DF.25 | Fleischerite | Pb3Ge(SO4)2(OH)6 · 3H2O |
| 7.DF.25 | Schaurteite | Ca3Ge(SO4)2(OH)6 · 4H2O |
| 7.DF.25 | Mallestigite | Pb3Sb5+(SO4)(AsO4)(OH)6 · 3H2O |
| 7.DF.30 | Slavíkite | (H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2O |
| 7.DF.35 | Metavoltine | K2Na6Fe2+Fe3+6O2(SO4)12 · 18H2O |
| 7.DF.40 | Lannonite | Mg2Ca4Al4(SO4)8F8 · 24H2O |
| 7.DF.40 | Vlodavetsite | AlCa2(SO4)2F2Cl · 4H2O |
| 7.DF.45 | Peretaite | Ca(SbO)4(SO4)2(OH)2 · 2H2O |
| 7.DF.50 | Gordaite | NaZn4(SO4)(OH)6Cl · 6H2O |
| 7.DF.50 | Calamaite | Na2TiO(SO4)2 · 2H2O |
| 7.DF.52 | Scordariite | K8(Fe3+0.67◻0.33)[Fe3+3O(SO4)6]2 · 14H2O |
| 7.DF.52 | Huizingite-(Al) | [(NH4)9(SO4)2][(Al,Fe3+)3(OH)2(H2O)4(SO4)6] |
| 7.DF.55 | Clairite | (NH4)2Fe3(SO4)4(OH)3 · 3H2O |
| 7.DF.55 | Giacovazzoite | K5Fe3+3O(SO4)6 · 10H2O |
| 7.DF.57 | Magnanelliite | K3Fe3+2(SO4)4(OH)(H2O)2 |
| 7.DF.60 | Arzrunite | Cu4Pb2(SO4)(OH)4Cl6 · 2H2O (?) |
| 7.DF.60 | Evdokimovite | Tl4(VO)3(SO4)5(H2O)5 |
| 7.DF.62 | Bridgesite-(Ce) | CaCe2Cu6(SO4)4(OH)12 · 8H2O |
| 7.DF.65 | Elyite | Pb4Cu(SO4)O2(OH)4 · H2O |
| 7.DF.70 | Lautenthalite | PbCu4(SO4)2(OH)6 · 3H2O |
| 7.DF.75 | Riomarinaite | Bi(SO4)(OH) · H2O |
| 7.DF.80 | Dukeite | Bi3+24Cr6+8O57(OH)6 · 3H2O |
Fluorescence of Yecoraite
None
Other Information
Notes:
The mineral fuses easily to a red glass and begins to evolve TeO2 shortly after the loss of water. It is readily soluble in cold 16% HCl or 10% HNO3.
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 Yecoraite
mindat.org URL:
https://www.mindat.org/min-4358.html
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References for Yecoraite
Reference List:
Localities for Yecoraite
symbol to view information about a locality.
The 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.
Austria | |
| Paar et al. (1998) |
| BLASS (1997) | |
| Walter et al. (2018) |
Canada | |
| Liferovich & Mitchell pers. comm. L. ... |
Mexico | |
| |
| Bol.Soc. Mexicana de Mineral. (1985) +2 other references |
Peru | |
| Yáñez et al. (2014, May) |
Sweden | |
| Pavel.M. Kartashov (n.d.) |
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Yécora Municipality, Sonora, Mexico