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Ardennite-(V)

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Big Photo

Feilongo, Sparone, Orco Valley, Torino Province, Piedmont, Italy
© G. Armellino

Show Ardennite-(V) Photos (2)



Formula:
Mn
2+
4
Al
 
4
(Mg,Al,Fe
3+
 
,Mn
3+
 
)
 
2
(Si
 
3
O
 
10
)(SiO
 
4
)
 
2
(VO
 
4
,SiO
 
4
)(OH)
 
6
System:OrthorhombicColour:Yellow
Name:
In allusion to its relationship to Ardennite and the dominance of VO4 over AsO4 in the composition.


Ardennite Group.

The VO4-analogue of Ardennite.

Classification of Ardennite-(V)

IMA status:Approved 2005
Strunz 8th edition ID:8/C.34-05
Nickel-Strunz 10th (pending) edition ID:9.BJ.40

9 : SILICATES (Germanates)
B : Sorosilicates
J : Sorosilicates with Si3O10, Si4O11, etc. anions; cations in octahedral [6] and greater coordination
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Type Occurrence of Ardennite-(V)

Type Locality:Sparone, Orco Valley, Torino Province, Piedmont, Italy

Physical Properties of Ardennite-(V)

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Yellow
Streak:White
Tenacity:Brittle
Cleavage:None Observed
Parting:None observed.
Density (calculated):3.55 g/cm3

Crystallography of Ardennite-(V)

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pmmn {P21/m 21/m 2/n}
Cell Parameters:a = 8.76Å, b = 5.838Å, c = 18.56Å
Ratio:a:b:c = 1.501 : 1 : 3.179
Unit Cell Volume:V 949.17 ų (Calculated from Unit Cell)
Morphology:Crystals elongated parallel to [010] and are very thin (up to 1 mm long and a few microns in diamater).

Optical Data of Ardennite-(V)

Type:Biaxial
Pleochroism:Weak
Comments:X = Pale yellow
Y = Pale yellow
Z = Yellowish

Chemical Properties of Ardennite-(V)

Formula:
Mn
2+
4
Al
 
4
(Mg,Al,Fe
3+
 
,Mn
3+
 
)
 
2
(Si
 
3
O
 
10
)(SiO
 
4
)
 
2
(VO
 
4
,SiO
 
4
)(OH)
 
6
Essential elements:Al, H, Mg, Mn, O, Si, V
All elements listed in formula:Al, Fe, H, Mg, Mn, O, Si, V

Relationship of Ardennite-(V) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.BJ.05Orientite
Ca
 
2
Mn
2+
 
Mn
3+
2
(Si
 
3
O
 
10
)(OH)
 
4
9.BJ.10Rosenhahnite
HCa
 
3
[Si
 
3
O
 
9
(OH)]
9.BJ.15Trabzonite
Ca
 
4
(Si
 
3
O
 
10
) · 2H
 
2
O
9.BJ.20Thalénite-(Y)
Y
 
3
(Si
 
3
O
 
10
)(OH)
9.BJ.20Fluorthalénite-(Y)
Y
 
3
(Si
 
3
O
 
10
)F
9.BJ.25Tiragalloite
Mn
2+
4
(HAsSi
 
3
O
 
13
)
9.BJ.30Medaite
(Mn,Ca)
 
6
(V,As)Si
 
5
O
 
18
OH
9.BJ.35Ruizite
Ca
 
2
Mn
3+
2
[(OH)
 
2
|H
 
2
Si
 
4
O
 
13
] · 2H
 
2
O
9.BJ.40Ardennite-(As)
Mn
2+
4
(Al,Mg)
 
6
(Si
 
3
O
 
10
)(SiO
 
4
)
 
2
(AsO
 
4
,VO
 
4
)(OH)
 
6
9.BJ.45Kilchoanite
Ca
 
3
Si
 
2
O
 
7
9.BJ.50Kornerupine
Mg
 
3
Al
 
6
(Si,Al,B)
 
5
O
 
21
(OH)
9.BJ.50Prismatine
(◻,Fe,Mg)(Mg,Al,Fe)
 
5
Al
 
4
Si
 
2
(Si,Al)
 
2
(B,Si,Al)(O,OH,F)
 
22
9.BJ.55Zunyite
Al
 
13
Si
 
5
O
 
20
(OH,F)
 
18
Cl
9.BJ.60Hubeite
Ca
 
2
Mn
2+
 
Fe
3+
 
[HSi
 
4
O
 
13
] · 2H
 
2
O
9.BJ.65Cassagnaite
(Ca,Mn
2+
 
)
 
4
(Fe
3+
 
,Mn
3+
 
,Al)
 
4
(V
3+
 
,Mg,Al)
 
2
(Si
 
3
O
 
10
)(SiO
 
4
)
 
2
(OH,O)
 
8

Other Names for Ardennite-(V)

Synonyms:
IMA2005-037
Other Languages:
German:Ardennit-(V)
Russian:Арденнит-(V)

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Ardennite-(V)

Reference List:

- +
Matsubara, S. & Kato, A. (1987): Ardennite from Sanbagawa in Sanbagawa metamorphic terrain,. Kanto Mountains, Japan. Bulletin of the National Science Museum, Series C, 13, 1-11. (First analytical confirmation of V-dominant ardennite, but not proposed as a new species at that time.)

Chimenti, S. (2004): Studio cristallochimico di campioni di ardennite da località italiane ed estere. Ph.D.Thesis Pisa University.

Pasero, M. & Orlandi, P. (2006): Two new minerals from Italy: ardennite-(V) and allanite-(La). International Mineralogical Association 19th General Meeting, Kobe, Japan, July 23-28 (2006), Conference Abstract Volume.

Barresi, A., Orlandi, P., Pasero, M. (2007): History of ardennite and the new mineral ardennite-(V). European Journal of Mineralogy, 19, 581-587.

Internet Links for Ardennite-(V)

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    • Localities for Ardennite-(V)

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Belgium
     
    • Liège Province
      • Stavelot Massif
        • Lienne valley
          • Werbomont
    		Stefan Weiss (2008) Lapis, 33, #2, 8.
    • Luxembourg Province
      • Stavelot Massif
        • Vielsalm
    		Stefan Weiss (2008) Lapis, 33, #2, 8.
    Greece
     
    • Sterea Hellas Department
      • Évvoia Prefecture
        • Évvia Island (Euboea; Évvoia)
    		Stefan Weiss (2008) Lapis, 33, #2, 8.
    Italy
     
    • Aosta Valley
      • Nus
        • Saint-Barthélemy
    		Barresi, A., Orlandi, P., Pasero, M. (2007): History of ardennite and the new mineral ardennite-(V). European Journal of Mineralogy, 19, 581-587
    • Piedmont
      • Torino Province
        • Orco Valley
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    Barresi, A., Orlandi, P., Pasero, M. (2007): History of ardennite and the new mineral ardennite-(V). European Journal of Mineralogy, 19, 581-587.
    Japan
     
    • Honshu Island
      • Kanto Region
        • Gunma Prefecture
          • Tano-gun
            • Oniishi-machi (Onishi-machi)
              • Sambagawa
    		Matsubara, S. & Kato, A. (1987): Ardennite from Sanbagawa in Sanbagawa metamorphic terrain,. Kanto Mountains, Japan. Bulletin of the National Science Museum, Series C, 13, 1-11.
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