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Lyonsite

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About LyonsiteHide

Formula:
Cu3Fe4(VO4)6
Colour:
Black. Creamy-white in reflected light.
Lustre:
Metallic
Crystal System:
Orthorhombic
Name:
Named in 1987 by J.M. Hughes, S.J. Starkey, M.L. Malinconico, and L.L. Malinconico in honor of John Bartholomew Lyons (22 November 1916, Quincy, Massachusetts, USA - 19 February 1998, Hanover, New Hampshire, USA), Professor of Mineralogy, Dartmouth College, Hanover, New Hampshire, USA.
Visually similar to pseudolyonsite.

A large number of isotypic synthetic compounds are known.


Classification of LyonsiteHide

Approved
8.AB.40

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
38.5.2.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
5 : Miscellaneous
21.1.15

21 : Vanadates (and vanadates with arsenate or phosphate)
1 : Vanadates of the alkalis and Cu

Physical Properties of LyonsiteHide

Metallic
Colour:
Black. Creamy-white in reflected light.

Chemical Properties of LyonsiteHide

Formula:
Cu3Fe4(VO4)6
IMA Formula:
Cu2+3Fe3+4(VO4)6

Crystallography of LyonsiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 10.29 Å, b = 17.2 Å, c = 4.91 Å
Ratio:
a:b:c = 0.598 : 1 : 0.285
Unit Cell V:
869.01 ų (Calculated from Unit Cell)

Type Occurrence of LyonsiteHide

Synonyms of LyonsiteHide

Other Language Names for LyonsiteHide

German:Lyonsit
Spanish:Lyonsita

Varieties of LyonsiteHide

Cu-rich lyonsiteA Cu-rich variety of lyonsite found in fumarolic sublimates of the Tolbachik volcano (Kamchatka, Russia).

Common AssociatesHide

Associated Minerals Based on Photo Data:
Unnamed (Lyonsite-like Cu-Fe-Vanadate)1 photo of Lyonsite associated with Unnamed (Lyonsite-like Cu-Fe-Vanadate) on mindat.org.
Hematite1 photo of Lyonsite associated with Hematite on mindat.org.
Alumoklyuchevskite1 photo of Lyonsite associated with Alumoklyuchevskite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.AB.BorisenkoiteCu3[(V,As)O4]2Mon. 2/m : P21/b
8.AB.05FarringtoniteMg3(PO4)2Mon. 2/m
8.AB.10FerrisickleriteLi1-x(Fe3+xFe2+1-x)PO4Orth.
8.AB.10Heterosite(Fe3+,Mn3+)PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10LithiophiliteLiMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10NatrophiliteNaMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10Purpurite(Mn3+,Fe3+)PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10SickleriteLi1-x(Mn3+xMn2+1-x)PO4Orth.
8.AB.10SimferiteLi(Mg,Fe3+,Mn3+)2(PO4)2Orth.
8.AB.10TriphyliteLiFe2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10KarenwebberiteNa(Fe2+,Mn2+)PO4Orth. mmm (2/m 2/m 2/m) : Pnma
8.AB.15Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2Mon. 2/m : P21/b
8.AB.15Chopinite(Mg,Fe2+)3(PO4)2Mon. 2/m : P21/b
8.AB.20BeusiteMn2+Mn2+2 (PO4)2Mon.
8.AB.20GraftoniteFe2+Fe2+2(PO4)2Mon. 2/m : P21/b
8.AB.25XanthiositeNi3(AsO4)2Mon. 2/m : P21/b
8.AB.30LammeriteCu3(AsO4)2Mon.
8.AB.30Lammerite-βCu3(AsO4)2Mon. 2/m : P21/b
8.AB.35McbirneyiteCu3(VO4)2Tric.
8.AB.35StranskiiteZn2Cu(AsO4)2Tric. 1 : P1
8.AB.35PseudolyonsiteCu3(VO4)2Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.1.1MetamuniriteNaVO3Orth.
21.1.2MuniriteNaVO3 · 1.9H2OMon.
21.1.3Barnesite(Na,Ca)V6O16 · 3H2OMon. 2/m : P2/m
21.1.4Bannermanite(Na,K)0.7V4+0.7V5+5.3O15Mon. 2/m : B2/m
21.1.5HowardevansiteNaCuFe2(VO4)3Tric. 1 : P1
21.1.6HuemuliteNa4Mg(V10O28) · 24H2OTric.
21.1.7Blossiteα-Cu2(V2O7)Orth. mm2 : Fdd2
21.1.8Ziesiteβ-Cu2(V2O7)Mon.
21.1.9StoiberiteCu5(VO4)2O2Mon.
21.1.10McbirneyiteCu3(VO4)2Tric.
21.1.11FingeriteCu11(VO4)6O2Tric. 1 : P1
21.1.12VolborthiteCu3(V2O7)(OH)2 · 2H2OMon. 2/m : B2/m
21.1.13TangeiteCaCu(VO4)(OH)Orth. 2 2 2 : P21 21 21
21.1.14VésigniéiteBaCu3(VO4)2(OH)2Mon. 2/m : B2/m

Other InformationHide

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 LyonsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hughes, J.M., Starkey, S.J., Malinconico, M.L., Malinconico, L.L. (1987) Lyonsite, Cu32+Fe43+(VO4)63-, a new fumarolic sublimate from Izalco volcano, El Salvador: Descriptive mineralogy and crystal structure. American Mineralogist: 72: 1000-1005.
Smit, J.P., Stair, P.C., Poeppelmeier, K.R. (2006) The adaptable lyonsite structure. Chemistry - A European Journal: 12: 5944-5953.

Internet Links for LyonsiteHide

Localities for LyonsiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
El Salvador (TL)
 
  • Sonsonate Department
Amer.Min.(1987) 72, 1000-1005
Germany
 
  • Thuringia
    • Gera
      • Ronneburg U deposit
T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
Russia
 
  • Far-Eastern Region
    • Kamchatka Oblast'
I. V. Pekov, N. V. Zubkova, D. Yu. Chernyshov, M. E. Zelenski, V. O. Yapaskurt, D. Yu. Pushcharovskii (2013): A new Cu-rich variety of lyonsite from fumarolic sublimates of the Tolbachik volcano (Kamchatka, Russia) and its crystal structure. Doklady Earth Sciences. 448(1),112-116
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
Pekov, I. V., Zubkova, N. V., Zelenski, M. E., Yapaskurt, V. O., Polekhovsky, Y. S., Fadeeva, O. A., & Pushcharovsky, D. Y. (2013). Yaroshevskite, Cu9O2 (VO4) 4Cl2, a new mineral from the Tolbachik volcano, Kamchatka, Russia. Mineralogical Magazine, 77(1), 107-116.
Igor Pekov etc data; Zelenski, M.E., Zubkova, N.V., Pekov, I.V., Polekhovsky, Yu.S. & Pushcharovsky, D.Yu. (2012): Cupromolybdite, Cu3O(MoO4)2, a new fumarolic mineral from the Tolbachik volcano, Kamchatka Peninsula, Russia. European Journal of Mineralogy, 24, 749-757.; Pekov, I. V., Zelenski, M. E., Zubkova, N. V., Yapaskurt, V. O., Chukanov, N. V., Belakovskiy, D. I., & Pushcharovsky, D. Y. (2012). Calciolangbeinite, K2Ca2 (SO4) 3, a new mineral from the Tolbachik volcano, Kamchatka, Russia. Mineralogical Magazine, 76(3), 673-682.
Mineral and/or Locality  
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