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Ardennite-(As)

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Ardennite-(As), etc.

Salmchâteau, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
Ardennite-(As)

Salmchâteau, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
Ardennite-(As)

Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Ardennite-(As), etc.

Salmchâteau, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
Ardennite-(As)

Salmchâteau, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
Ardennite-(As)

Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Ardennite-(As), etc.

Salmchâteau, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
Ardennite-(As)

Salmchâteau, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
Ardennes autumn

Bastogne, Luxembourg Province, Belgium
Formula:
Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
System:
Orthorhombic
Colour:
Yellow to Brown
Lustre:
Sub-Adamantine
Hardness:
6 - 7
Member of:
Name:
For the type locality in the Ardennes Mountains, Belgium.
The AsO4-analogue of (the less common) ardennite-(V).
Prior to an IMA redefinition in 2007, the name ardennite was used for ardennite-(As).


Classification of Ardennite-(As)

IMA status:
Approved, 'Grandfathered' (first described prior to 1959)
Strunz 8th ed.:
8/C.34-10
Nickel-Strunz 10th (pending) ed.:
9.BJ.40

9 : SILICATES (Germanates)
B : Sorosilicates
J : Sorosilicates with Si3O10, Si4O11, etc. anions; cations in octahedral [6] and greater coordination
Dana 8th ed.:
58.3.1.1

58 : SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
3 : Insular, Mixed, Single, and Larger Tetrahedral Groups with insular single and triple groups (n=1, 3)
Hey's CIM Ref.:
17.7.4

17 : Silicates Containing other Anions
7 : Silicates with vanadate, arsenate or antimonate

Physical Properties of Ardennite-(As)

Lustre:
Sub-Adamantine
Diaphaneity (Transparency):
Opaque
Colour:
Yellow to Brown
Hardness (Mohs):
6 - 7
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {010}, distinct on {110}
Parting:
On {001}
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
3.69 - 3.75 g/cm3 (Measured)    3.74 g/cm3 (Calculated)

Optical Data of Ardennite-(As)

Type:
Biaxial (+)
Dispersion:
strong
Pleochroism:
Strong
Comments:
X= dark brownish yellow
Y= golden yellow
X= pale yellow

Chemical Properties of Ardennite-(As)

Formula:
Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Elements listed in formula:
Al, As, H, Mg, Mn, O, Si - search for minerals with similar chemistry
Common Impurities:
Ti,Cu

Crystallography of Ardennite-(As)

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 8.7126(8) Å, b = 18.5124(11) Å, c = 5.8108(8) Å
Ratio:
a:b:c = 0.471 : 1 : 0.314
Unit Cell Volume:
V 937.23 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Prismatic, radiating fibrous groups.

Crystallographic forms of Ardennite-(As)

Crystal Atlas:
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Ardennite no.1 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

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Occurrences of Ardennite-(As)

Type Occurrence of Ardennite-(As)

Type Locality:
ⓘ Salmchâteau, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
Place of Conservation of Type Material:
Mineralogical Museum University of Wroclaw
Musée de Minéralogie, Ecole des Mines de Paris (originally as 'dewalquite')
Geological Setting of Type Material:
Pegmatites and quartz veins in schist

Relationship of Ardennite-(As) to other Species

Member of:
Ardennite Group
Other Members of Group:
AlpeiteCa4Mn23+Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6
Ardennite-(V)Mn42+Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6
KannaniteCa4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6
Common Associates:
Albite
Braunite
Hematite
Piemontite
Pyrolusite
Quartz
Spessartine
Related Minerals - Nickel-Strunz Grouping):
9.BJ.05OrientiteCa8Mn103+(SiO4)3(Si3O10)3(OH)10 · 4H2O
9.BJ.10RosenhahniteHCa3[Si3O9(OH)]
9.BJ.15TrabzoniteCa4(Si3O9)(OH)2
9.BJ.20Thalénite-(Y)Y3Si3O10F
9.BJ.25TiragalloiteMn42+As5+Si3O12(OH)
9.BJ.30MedaiteMn62+V5+Si5O18(OH)
9.BJ.35RuiziteCa2Mn23+[Si4O11(OH)2](OH)2·2H2O
9.BJ.40Ardennite-(V)Mn42+Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6
9.BJ.45KilchoaniteCa6(SiO4)(Si3O10)
9.BJ.50KornerupineMg3Al6(Si,Al,B)5O21(OH)
9.BJ.50Prismatine(◻,Fe,Mg)(Mg,Al,Fe)5Al4Si2(Si,Al)2(B,Si,Al)(O,OH,F)22
9.BJ.55ZunyiteAl13Si5O20(OH,F)18Cl
9.BJ.60HubeiteCa2Mn2+Fe3+[HSi4O13] · 2H2O
9.BJ.65Cassagnaite(Ca,Mn2+)4(Fe3+,Mn3+,Al)4(V3+,Mg,Al)2(Si3O10)(SiO4)2(OH,O)8
Related Minerals - Hey's Index Grouping:
17.7.1SuzukiiteBaVSi2O7
17.7.2FranciscaniteMn62+(V5+,☐)2(SiO4)2(O,OH)6
17.7.3Kurumsakite(Zn,Ni,Cu)8Al8V25+Si5O35 · 27H2O (?)
17.7.5MedaiteMn62+V5+Si5O18(OH)
17.7.6JohninnesiteNa2Mn92+Mg7(OH)8[AsO4]2[Si6O17]2
17.7.7TiragalloiteMn42+As5+Si3O12(OH)
17.7.8DixeniteCuMn142+Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6
17.7.9AsbecasiteCa3(Ti,Sn4+)Be2(AsO3)6(SiO4)2
17.7.10McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21
17.7.11KraissliteZn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16
17.7.12SchalleriteMn162+As3Si12O36(OH)17
17.7.13Nelenite(Mn,Fe)16(Si12O30)(OH)14[As33+O6(OH)3]
17.7.14KoliciteMn72+Zn4(AsO4)2(SiO4)2(OH)8
17.7.15YeatmaniteZn6Mn92+Sb25+(SiO4)4O12
17.7.16WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]
17.7.17Katoptrite(Mn2+,Mg)13(Al,Fe3+)4Sb25+(SiO4)2O20
17.7.18ParweliteMn10Sb2As2Si2O24
17.7.19LångbaniteMn42+Mn93+Sb5+O16(SiO4)2
17.7.20ChapmaniteFe23+Sb3+(Si2O5)O3(OH)
17.7.21Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)

Other Names for Ardennite-(As)

Synonyms:

Arsenioardennite

Dewalquite

Name in Other Languages:
Simplified Chinese:砷铝钡矿
砷锰硅铝矿

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.

References for Ardennite-(As)

Reference List:
von Lasaulx, A. (1872) Ardennit, ein neues Mineral. Neues Jahrbuch für Mineralogie, Geologie und Paläontologie: 1872: 930-934.

von Lasaulx, A. (1872) Über ein neues Mineral aus der Gegend von Ottrez. Sitzungsberichte der niederrheinischen Gesellschaft für Natur- und Heilkunde in Bonn. Verhandlungen des Naturhistorischen Vereines der Preussischen Rheinlande und Westphalens: 29: 189-192.

Nayak, V.K. (1967) Ardennite from Kajlidongri, India. New locality. Neues Jahrbuch für Mineralogie, Abhandlungen: 1967: 295-304.

Donnay, G., Allmann, R. (1968) Si3O10 groups in the crystal structure of ardennite. Acta Crystallographica: B24: 845-855.

Pasero M., Reinecke T., Fransolet A.M. (1994) Crystal structure refinements and compositional control of Mn-Mg-Ca ardennites from the Belgian Ardennes, Greece, and the Western Alps. Neues Jahrbuch für Mineralogie, Monatshefte und Abhandlungen: 166: 137-167.

Pasero, M., Reinecke, T. (1991) Crystal chemistry, HRTEM analysis, and polytypic behavior of ardennite. European Journal of Mineralogy: 3: 819-830.

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-(As)

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    • Localities for Ardennite-(As)

    This 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.
    (TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
    Austria
     
    • Salzburg
      • Lungau
        • Taurach valley
    		 Kolitsch, U., Schachinger, T. and Bernhard, F. (2015): Ardennite-(As), ardennite-(V), gasparite-(Ce) and chernovite-(Y): first results of a mineralogical study of the metaradiolarite-hosted manganese ore mineralisations in the Fuchssee area, Radstadt Tauern, Salzburg, Austria. MinPet 2015, Leoben, Austria, September 10-13; abstract in Mitt. Österr. Mineral. Ges. 161, 67.
    • Tyrol
      • North Tyrol
        • Sill valley (Wipp valley)
          • Navis valley
    		Kolitsch, U., Schachinger, T. and Bernhard, F. (2015): Ardennite-(As), ardennite-(V), gasparite-(Ce) and chernovite-(Y): first results of a mineralogical study of the metaradiolarite-hosted manganese ore mineralisations in the Fuchssee area, Radstadt Tauern, Salzburg, Austria. MinPet 2015, Leoben, Austria, September 10-13; abstract in Mitt. Österr. Mineral. Ges. 161, 67.
    Belgium
     
    • Liège Province
      • Stavelot Massif
        • Lienne valley
          • Lierneux
            • Petit-Sart
    		Alan Backaert collection (found 2013-2016)
    • Luxembourg Province
      • Stavelot Massif
        • Vielsalm
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Ann.Mines, 4th ser. (1842) 2, 357
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Nagashima, M. and Armbruster, T. (2010): Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates. Mineralogical Magazine 74, 55-71
    BLONDIEAU M., PUCCIO S., COMPERE P., HATERT F. (2017) - Données nouvelles sur quelques espèces minérales de Vielsalm et de Salmchâteau. Bulletin de la Société Royale des Sciences de Liège, Vol. 86, p. 1 - 48
    France
     
    • Auvergne-Rhône-Alpes
      • Savoie
        • Maurienne valley
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Greece
     
    • Aegean Islands Department (Aiyaíon)
      • Kykládes Prefecture
        • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    • Sterea Hellas Department
      • Évvoia Prefecture
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    India
     
    • Madhya Pradesh
      • Jhabua District
    		Nayak, V. K. (1967): Ardennite from Kajlidongri, India. New locality. Neues Jahrbuch für Mineralogie, Abhandlungen 1967, 295-304.
    Italy
     
    • Aosta Valley
      • Nus
        • Saint-Barthélemy
    		Pelloux, A. (1946): Mineralogy of Aosta Valley. Rend. soc. mineral. ital. 3, 188-206. ; Barresi, A.A., Kolitsch, U., Ciriotti, M.E., Ambrino, P., Bracco, R., Bonacina, E. (2005): La miniera di manganese di Varenche (Aosta, Italia nord-occidentale): ardennite, arseniopleite, manganberzeliite, pirofanite, sarkinite, thortveitite, nuovo As-Sc-analogo della metavariscite e altre specie. Micro (località), 2/2005, 81-122.
    • Liguria
      • Genova and La Spezia Provinces
        • Tre Monti mining concession
          • Castiglione Chiavarese and Maissana
    		analysed by Dr. Anthony Kampf, Natural History Museum of Los Angeles County, USA
      • Genova Province
        • Genova
          • Varenna Valley
    		Balestra C. (2014): Sistematica ligure 2014. Prie, 10, 35-37; Munì F. (2014): Caratterizzazione mineralogica e minerochimica delle quarziti manganesifere della Val Varenna (Liguria). Università degli Studi di Genova. Scuola di Scienze Matematiche, Fisiche e Naturali. Tesi di laurea triennale in Scienze Geologiche, 70 pp.
        • Ne
          • Graveglia Valley
            • Reppia
    		analysed by Dr. Anthony Kampf, Natural History Museum of Los Angeles County, USA
    • Lombardy
      • Sondrio Province
        • Valtellina
          • Malenco Valley
            • Torre di Santa Maria
    		- Bedognè, F., Montrasio, A., Sciesa, E. (1993): I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp. - Barresi, A.A., Orlandi, P., Pasero, M. (2007): History of ardennite and the new mineral ardennite-(V). Eur. J. Mineral., 19, 581-587.
    • Piedmont
      • Torino Province
        • Balangero - Corio area
    		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.
        • Lanzo Valleys
          • Ceres
    		Maccario,G.& Meda,F.(1970):Il giacimento manganesifero di Vernetto,Ceres.Notiziario del Gruppo Mineralogico Piemontese,2(2),9-10; Nagashima, M. and Armbruster, T. (2010): Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates. Mineralogical Magazine 74, 55-71
      • Vercelli Province
        • Sesia Valley
          • Alagna Valsesia
            • Otro Valley
    		Bonino A. (1965): Cenni petrografici su due giacimenti manganesiferi delle Alpi piemontesi. Atti e Rassegna Tecnica della Società degli ingegneri e degli architetti in Torino, 19, 12, 613-616; Peters Tj., Trommsdorff V., Sommerauer J. (1978): Manganese pyroxenoids and carbonates: critical phase relations in metamorphic assemblages from the Alps. Contrib. Mineral. Petrol., 66, 383-388; Piccoli G.C., Maletto G., Bosio P., Lombardo B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba (Cuneo), 607 pp.
    Japan
     
    • Honshu Island
      • Kanto Region
        • Gunma Prefecture
          • Tano-gun
            • Oniishi-machi (Onishi-machi)
    		The Mineral Species of Japan (5th ed) Matsubara
    • Kyushu Region
      • Nagasaki Prefecture
        • Nagasaki City
          • Kinkai-Tone-machi
    		Sasaki, N., Yano, M. & Matsuyama, F. (2002): Ardennite from the Tone mine, Nagasaki Prefecture, Japan. Chigaku Kenkyu 51, 67-72. (in Japanese)
    • Shikoku Island
      • Kochi Prefecture
    		Masaki Enami (1986) Mineralogical Journal, 13, 151-160.
        • Nagaoka-gun
    		The Mineral Species of Japan (5th ed) Matsubara
    Minakawa, T., & Momoi, H. (1987). Occurrences of ardennite and sursassite from the metamorphic manganese deposits in the Sanbagawa belt, Shikoku. Japan. Journal of the Mineralogical Society of Japan, 18, 87-98.
      • Tokushima prefecture
    		Joe Cilen collection No. 21,034
    New Zealand
     
    • South Island
      • Otago
        • Queenstown
    		C. Lemanski, Jr. collection (6782CL).
    Republic of Macedonia
     
    • Veles
    		Schweiz. mineral. petrogr. Mitt. (1994) 74, 321-328; Canadian Mineralogist(1996) 34, 1287-1297
    Russia
     
    • Northern Region
      • Komi Republic
        • Prepolar Ural
          • Kozhim River Basin
            • Maldynyrd range (Maldy-nyrd range)
              • Grubependity Lake
    		Pavel M. Kartashov data
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Albula Valley
        • Oberhalbstein (Surses; Sursass)
          • Tinizong (Tinzen)
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 49
    Geiger T. & Cabalzar W. Ardennit - Ein Neufund von der Alp Parsettens, Val d'Err GR. Schweizer Strahler Nr.5, S. 201 - 211, (1989)
      • Bregaglia Valley (Bergell)
        • Maroz Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 49; Brugger J. (1996): The Fe, Mn, (V, Sb, As, Be, W) deposits of Val Ferrera (Graubünden, Switzerland). Unpublished PhD Thesis, Univ. Basel. 188 p.
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 49
      • Engadin
        • Piz Corvatsch
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 49
    UK
     
    • England
      • Somerset
        • Cranmore
    		Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, vol. 42, n° 322, 169-177; Turner, R. (2006): A mechanism for the formation of the mineralized Mn deposits at Merehead Quarry, Cranmore, Somerset, England. Mineralogical Magazine 70, 629-653; Turner R.W. and Rumsey, M.S. (2007) Merehead Mineralogy - an Update. Russell Soc Newsletter, No 50, pp 17-18 (March 2007); Turner, R.W. and Rumsey, M.S. (2010): Mineral Relationships in the Mendip Hills. Journal of the Russell Society, vol 13, pp 3-46.
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