Ardennite-(Si)
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About Ardennite-(Si)
Formula:
~Mn2+4Al4(AlMg)(SiO4,AsO4)(SiO4)2(Si3O10)(OH)6
Member of:
Unapproved name for a member of the ardennite group, in which the As site (T4) is predominantly occupied by Si. This substitution is coupled to an increased content of six-coordinated Mn3+.
Orlandi et al. (2013) assume that this phase could be structurally related to lavoisierite.
Originally described by Pasero & Reinecke (1991), with Si:As up to 9:1 on the As site.
Chemically and stoichiometrically similar to sursassite.
Orlandi et al. (2013) assume that this phase could be structurally related to lavoisierite.
Originally described by Pasero & Reinecke (1991), with Si:As up to 9:1 on the As site.
Chemically and stoichiometrically similar to sursassite.
Unique Identifiers
Mindat ID:
53843
Long-form identifier:
mindat:1:1:53843:9
Similar Names
| Ardennite | A synonym | |
| Ardennite-(As) | A valid IMA mineral species - grandfathered | Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6 |
| Ardennite-(V) | A valid IMA mineral species | Mn42+Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6 |
| Arduinite | A synonym of Mordenite | |
| Artinite | A valid IMA mineral species - grandfathered | Mg2(CO3)(OH)2 · 3H2O |
IMA Classification of Ardennite-(Si)
IMA status notes:
Published without approval
Chemistry of Ardennite-(Si)
Mindat Formula:
~Mn2+4Al4(AlMg)(SiO4,AsO4)(SiO4)2(Si3O10)(OH)6
Element Weights:
Relationship of Ardennite-(Si) to other Species
Member of:
Other Members of Ardennite Group:
| 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-(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 |
Common Associates
Associations Based on Photo Data:
| 1 photo of Ardennite-(Si) associated with Ardennite-(As) | Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6 |
| 1 photo of Ardennite-(Si) associated with Braunite | Mn2+Mn3+6(SiO4)O8 |
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-(Si)
mindat.org URL:
https://www.mindat.org/min-53843.html
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References for Ardennite-(Si)
Reference List:
Pasero, Marco, Reinecke, Thomas (1991) Crystal chemistry, HRTEM analysis and polytypic behaviour of ardennite. European Journal of Mineralogy, 3 (5) 819-830 doi:10.1127/ejm/3/5/0819[as unnamed phase]
Nagashima, M., Armbruster, T. (2010) Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates. Mineralogical Magazine, 74 (1) 55-71 doi:10.1180/minmag.2010.074.1.55
Localities for Ardennite-(Si)
Showing 4 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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 | |
| Kolitsch et al. (2019) |
Belgium | |
| Depret et al. (2024) |
Greece | |
| Pasero et al. (1991) |
Italy | |
| Chimenti (2004) |
Navis stream, Navis, Innsbruck-Land District, Tyrol, Austria