Xocolatlite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Xocolatlite
Formula:
Ca2Mn4+2(Te6+O6)2 · H2O
Colour:
Chocolate-brown (RAL 8017)
Lustre:
Vitreous
Hardness:
2 - 3
Specific Gravity:
4.70 (Calculated)
Crystal System:
Monoclinic
Name:
Derived from the Nahuatl word 'xocolatl' or 'xocoatl', meaning 'bitter water', and is the root for 'chocolate', in reference to the mineral's chocolate-brown color, and the Mexican type-locality.
Unique Identifiers
Mindat ID:
38843
Long-form identifier:
mindat:1:1:38843:6
IMA Classification of Xocolatlite
Approved
IMA Formula:
Ca2Mn4+2Te6+2O12·H2O
Approval year:
2007
First published:
2008
Type description reference:
Grundler, P. V., Brugger, J., Meisser, N., Ansermet, S., Borg, S., Etschmann, B., Testemale, D., Bolin, T. (2008) Xocolatlite, Ca2Mn4+2Te2O12·H2O, a new tellurate related to kuranakhite: Description and measurement of Te oxidation state by XANES spectroscopy. American Mineralogist, 93 (11) 1911-1920 doi:10.2138/am.2008.2870
Classification of Xocolatlite
7.CC.85
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
C : With medium-sized and large cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with 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 for Standard |
|---|---|---|
| Xoc | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Xocolatlite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Xocolatlite
Vitreous
Transparency:
Transparent
Colour:
Chocolate-brown (RAL 8017)
Streak:
Copper-brown (RAL 8004)
Hardness:
2 - 3 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Perfect
mica-like
mica-like
Fracture:
Conchoidal
Density:
4.70 g/cm3 (Calculated)
Chemistry of Xocolatlite
Mindat Formula:
Ca2Mn4+2(Te6+O6)2 · H2O
Element Weights:
Crystallography of Xocolatlite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/m
Cell Parameters:
a = 10.757(3) Å, b = 4.928(3) Å, c = 8.492(2) Å
β = 102.39(3)°
β = 102.39(3)°
Ratio:
a:b:c = 2.183 : 1 : 1.723
Unit Cell V:
463 ų
Z:
2
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.267 Å | (100) |
| 2.52 Å | (71) |
| 4.361 Å | (51) |
| 1.762 Å | (39) |
| 4.924 Å | (34) |
| 2.244 Å | (32) |
| 1.455 Å | (24) |
| 1.996 Å | (21) |
| 1.565 Å | (20) |
| 2.353 Å | (18) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47e : [Vanadates, chromates, manganates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Xocolatlite
General Appearance of Type Material:
Brown crystalline crusts.
Place of Conservation of Type Material:
Musée Cantonal de Géologie, Lausanne, Switzerland, MGL90740.
Geological Setting of Type Material:
Epithermal quartz-tellurium-gold vein system.
Associated Minerals at Type Locality:
Reference:
Grundler, P. V., Brugger, J., Meisser, N., Ansermet, S., Borg, S., Etschmann, B., Testemale, D., Bolin, T. (2008) Xocolatlite, Ca2Mn4+2Te2O12·H2O, a new tellurate related to kuranakhite: Description and measurement of Te oxidation state by XANES spectroscopy. American Mineralogist, 93 (11) 1911-1920 doi:10.2138/am.2008.2870
Synonyms of Xocolatlite
Other Language Names for Xocolatlite
Dutch:Xocolatliet
German:Xocolatlit
Common Associates
Associations Based on Photo Data:
| 6 photos of Xocolatlite associated with Quartz | SiO2 |
| 6 photos of Xocolatlite associated with Dagenaisite | Zn3Te6+O6 |
| 3 photos of Xocolatlite associated with Tellurite | TeO2 |
| 3 photos of Xocolatlite associated with Carlfriesite | CaTe4+2Te6+O8 |
| 2 photos of Xocolatlite associated with Andymcdonaldite | Fe2TeO6 |
| 1 photo of Xocolatlite associated with Baryte | BaSO4 |
| 1 photo of Xocolatlite associated with Leisingite | Cu2MgTe6+O6 · 6H2O |
| 1 photo of Xocolatlite associated with Eurekadumpite | (Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18 · 7H2O |
Related Minerals - Strunz-mindat Grouping
| 7.CC. | Cobaltoblödite | Na2Co(SO4)2 · 4H2O |
| 7.CC. | Andychristyite | PbCu2+Te6+O5(H2O) |
| 7.CC. | Ammoniovoltaite | (NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18 |
| 7.CC.05 | Krausite | KFe(SO4)2 · H2O |
| 7.CC.10 | Tamarugite | NaAl(SO4)2 · 6H2O |
| 7.CC.15 | Mendozite | NaAl(SO4)2 · 11H2O |
| 7.CC.15 | Kalinite | KAl(SO4)2 · 11H2O |
| 7.CC.20 | Alum-(Na) | NaAl(SO4)2 · 12H2O |
| 7.CC.20 | Lonecreekite | (NH4)Fe3+(SO4)2 · 12H2O |
| 7.CC.20 | Alum-(K) | KAl(SO4)2 · 12H2O |
| 7.CC.20 | Tschermigite | (NH4)Al(SO4)2 · 12H2O |
| 7.CC.20 | Lanmuchangite | Tl+Al(SO4)2 · 12H2O |
| 7.CC.25 | Zincovoltaite | K2Zn5Fe3+3Al(SO4)12 · 18H2O |
| 7.CC.25 | Voltaite | K2Fe2+5Fe3+3Al(SO4)12 · 18H2O |
| 7.CC.25 | Magnesiovoltaite | K2Mg5Fe3+3Al(SO4)12 · 18H2O |
| 7.CC.25 | Pertlikite | K2(Fe2+,Mg)2(Mg,Fe3+)4Fe3+2Al(SO4)12 · 18H2O |
| 7.CC.25 | Ammoniomagnesiovoltaite | (NH4)2Mg2+5Fe3+3Al(SO4)12 · 18H2O |
| 7.CC.30 | Kröhnkite | Na2Cu(SO4)2 · 2H2O |
| 7.CC.35 | Ferrinatrite | Na3Fe(SO4)3 · 3H2O |
| 7.CC.40 | Goldichite | KFe(SO4)2 · 4H2O |
| 7.CC.45 | Löweite | Na12Mg7(SO4)13 · 15H2O |
| 7.CC.50 | Nickelblödite | Na2Ni(SO4)2 · 4H2O |
| 7.CC.50 | Blödite | Na2Mg(SO4)2 · 4H2O |
| 7.CC.50 | Changoite | Na2Zn(SO4)2 · 4H2O |
| 7.CC.55 | Leonite | K2Mg(SO4)2 · 4H2O |
| 7.CC.55 | Mereiterite | K2Fe(SO4)2 · 4H2O |
| 7.CC.60 | Nickelpicromerite | K2Ni(SO4)2 · 6H2O |
| 7.CC.60 | Nickelboussingaultite | (NH4)2Ni(SO4)2 · 6H2O |
| 7.CC.60 | Katerinopoulosite | (NH4)2Zn(SO4)2 · 6H2O |
| 7.CC.60 | Picromerite | K2Mg(SO4)2 · 6H2O |
| 7.CC.60 | Cyanochroite | K2Cu(SO4)2 · 6H2O |
| 7.CC.60 | Mohrite | (NH4)2Fe(SO4)2 · 6H2O |
| 7.CC.60 | Boussingaultite | (NH4)2Mg(SO4)2 · 6H2O |
| 7.CC.65 | Polyhalite | K2Ca2Mg(SO4)4 · 2H2O |
| 7.CC.70 | Leightonite | K2Ca2Cu(SO4)4 · 2H2O |
| 7.CC.75 | Amarillite | NaFe(SO4)2 · 6H2O |
| 7.CC.80 | Konyaite | Na2Mg(SO4)2 · 5H2O |
| 7.CC.85 | Wattevilleite | Na2Ca(SO4)2 · 4H2O (?) |
| 7.CC.90 | Eckhardite | (Ca,Pb)Cu2+Te6+O5(H2O) |
Fluorescence of Xocolatlite
None observed
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 Xocolatlite
mindat.org URL:
https://www.mindat.org/min-38843.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Xocolatlite
Reference List:
Grundler, P. V., Brugger, J., Meisser, N., Ansermet, S., Borg, S., Etschmann, B., Testemale, D., Bolin, T. (2008) Xocolatlite, Ca2Mn4+2Te2O12·H2O, a new tellurate related to kuranakhite: Description and measurement of Te oxidation state by XANES spectroscopy. American Mineralogist, 93 (11) 1911-1920 doi:10.2138/am.2008.2870
Localities for Xocolatlite
Showing 6 localities.
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.
Italy | |
| M.E. Ciriotti personal communication |
Mexico (TL) | |
| Grundler et al. (2008) |
USA | |
| Kampf et al. (2022) |
| EDS and Raman analyzed by Joy Desor. |
| MarekC collection 2019 |
| Coolbaugh et al. (2020) |
Quick NavTopAbout XocolatliteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
Moctezuma Mine, Moctezuma, Moctezuma Municipality, Sonora, Mexico