Ardennite Group
A group of related mineral species
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About Ardennite Group
This page provides mineralogical data about Ardennite Group.
Unique Identifiers
Mindat ID:
46923
Long-form identifier:
mindat:1:1:46923:6
Chemical Analysis
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | (Ca3.60Mn2+0.40)Σ4(Al3.00Mn3+1.31Fe3+0.69Mg0.71Mn2+0.19Ni0.06Cu0.05)Σ6[(V5+0.70Si0.16As0.14)Σ1O3.84(OH)0.16](SiO4)2(Si3O10)(OH)6 |
| 2 | (Ca3.84Mn2+0.16)Σ4.00(Mn3+1.33Al0.67)Σ2.00(Al1.29Mn3+0.60V5+0.10)Σ1.99(Mn3+0.70Mg0.65Al0.42Co2+0.20)Σ1.97(SiO4)2(Si3O10)[(V5+0.75Si0.25)O4](OH)6 |
Sample references:
| ID | Type | Locality | Reference | Notes |
|---|---|---|---|---|
| 1 | Type Specimen | Mt Kannan, Ouzu City, Ehime Prefecture, Japan | ||
| 2 | Type Specimen | Monte Alpe Mine, Mt. Alpe, Maissana, La Spezia Province, Liguria, Italy | Electron microprobe analyses gave the empirical formula based on 28O atoms per formula unit. |
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0019901 | Ardennite-(As) | Nagashima M, Armbruster T (2010) Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates Mineralogical Magazine 74 55-71 | 2010 | Vernetto mine, Val Lanzo, Torino, Piedmont, Italy | 0 | 293 | |
| 0019900 | Ardennite-(As) | Nagashima M, Armbruster T (2010) Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates Mineralogical Magazine 74 55-71 | 2010 | Salm-Chateau, Ardennes, Belgium | 0 | 293 | |
| 0009340 | Ardennite-(As) | Donnay G, Allmann R (1968) Si3O10 groups in the crystal structure of ardennite Acta Crystallographica B24 845-855 | ![]() | 1968 | 0 | 293 |
CIF Raw Data - click here to close
Relationship of Ardennite Group to other Species
Ardennite Group Members:
| Alpeite | Ca4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6 | Orth. mmm(2/m2/m2/m) : Pmmn |
| Ardennite-(As) | Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6 | Orth. mmm(2/m2/m2/m) |
| 'Ardennite-(Si)' | ~Mn2+4Al4(AlMg)(SiO4,AsO4)(SiO4)2(Si3O10)(OH)6 | |
| Ardennite-(V) | Mn2+4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6 | Orth. mmm(2/m2/m2/m) : Pmmn |
| Kannanite | Ca4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6 | Orth. mmm(2/m2/m2/m) : Pmmn |
Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.
Minerals structurally related to group:
| 'Lavoisierite' | Mn2+8[Al10(Mn3+Mg)][Si11P]O44(OH)12 |
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 Ardennite Group
mindat.org URL:
https://www.mindat.org/min-46923.html
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References for Ardennite Group
Localities for Ardennite Group
Showing 87 localities.
Locality List
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- This locality has estimated coordinates.
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? - 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.







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Salmchâteau, Vielsalm, Luxembourg, Wallonia, Belgium