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About DavyneHide

Sir Humphry Davy
Colourless, white
5½ - 6
Specific Gravity:
2.42 - 2.53
Crystal System:
Named by T. Monticelli and N. Covelli in 1825 in honor of Sir Humphry Davy (17 December 1778, Penzance, Cornwall, England - 29 May 1829, Geneva, Switzerland), chemist who first isolated potassium, sodium, calcium, strontium, barium, magnesium and boron.

Cancrinite Group.

In the structure there are large channels closed by 12-membered tetrahedra rings. The channels are surrounded by cages, that are set in columns. In the "davyne subgroup" the cages contain [CaCl]+ lusters.

Classification of DavyneHide

Approved, 'Grandfathered' (first described prior to 1959)
First published:

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
B : Tektosilicates with additional anions

76 : TECTOSILICATES Al-Si Framework
2 : Al-Si Framework Feldspathoids and related species

17 : Silicates Containing other Anions
10 : Silicates with sulphate, molybdate or tungstate

Physical Properties of DavyneHide

Transparent, Translucent
Colourless, white
5½ - 6 on Mohs scale
on (10_10)
perfect to indistinct on {0001}
Irregular/Uneven, Conchoidal
2.42 - 2.53 g/cm3 (Measured)    2.50 g/cm3 (Calculated)

Optical Data of DavyneHide

Uniaxial (+)
RI values:
nω = 1.515 - 1.519 nε = 1.519 - 1.522
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of DavyneHide

IMA Formula:

Crystallography of DavyneHide

Crystal System:
Class (H-M):
6/m - Dipyramidal
Space Group:
Cell Parameters:
a = 12.705(4) Å, c = 5.368(3) Å
a:c = 1 : 0.423
Unit Cell V:
750.40 ų (Calculated from Unit Cell)
Prismatic crystals to 4 cm.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005240DavyneHassan I, Grundy H D (1990) Structure of davyne and implications for stacking faults Sample BM1907,210 The Canadian Mineralogist 28 341-34919900293
0005241DavyneHassan I, Grundy H D (1990) Structure of davyne and implications for stacking faults Sample 1469 The Canadian Mineralogist 28 341-34919900293
0012420DavyneRozenberg K A, Rastsvetaeva R K, Chukanov N V (2009) Crystal structures of oxalate-bearing cancrinite with an unusual arrangement of CO3 groups and sulfate-rich davyne Crystallography Reports 54 793-7992009Sar-e Sang mine, Badakhshan, Afghanistan0293
0014841DavyneBonaccorsi E, Merlino S, Pasero M (1990) Davyne: its structural relationships with cancrinite and vishnevite Neues Jahrbuch fur Mineralogie, Monatshefte 1990 97-1121990Monte Somma, Vesuvius, Italy0293
CIF Raw Data - click here to close

Geological EnvironmentHide

Geological Setting:
Volcanic ejecta and leucite rich lavas.

Type Occurrence of DavyneHide

Other Language Names for DavyneHide


Varieties of DavyneHide

AcarbodavyneVariety of Davyne free of Carbon Dioxide. A member of the Cancrinite group.

Relationship of Davyne to other SpeciesHide

Other Members of this group:
Afghanite(Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P3 1c
Alloriite(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6Trig. 3m : P3 1c
Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)Hex. 6 : P63
Biachellaite(Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2OTrig. 3 : P3
Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2OHex. 6 : P63
CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2OHex.
CarbobystriteNa8(Al6Si6O24)(CO3) · 3.5H2OTrig. 3m : P3 1c
DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (xHex. 6 : P63
Fantappièite[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2OTrig. 3 : R3
Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2Trig. 3m : P3 1c
HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2OHex.
KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2OTrig. 3 2 : R3 2
KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)Hex. 6 : P63
Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex. 6 : P6
Marinellite(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2OTrig. 3m : P3 1c
PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2OHex.
Sacrofanite(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2OHex.
SulfhydrylbystriteNa5K2Ca[Al6Si6O24](S5)2(SH)Trig. 3m : P3 1c
Tounkite(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2OHex.
UM2009-23-SiO:AlCCaClHKNaS(Na,Ca)24K10[(Si,Al)60O120](SO4)5.6Cl1.5(CO3)0.4 · 11H2OTrig. 3 : P3
Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Davyne associated with SodaliteNa4(Si3Al3)O12Cl
2 photos of Davyne associated with Cancrinite Group
1 photo of Davyne associated with SpinelMgAl2O4
1 photo of Davyne associated with Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
1 photo of Davyne associated with Olivine
1 photo of Davyne associated with VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
1 photo of Davyne associated with Pyroxene Group

Related Minerals - Nickel-Strunz GroupingHide

9.FB.05Afghanite(Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P3 1c
9.FB.05Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2OHex. 6 : P63
9.FB.05CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2OHex.
9.FB.05Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
9.FB.05Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2Trig. 3m : P3 1c
9.FB.05HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2OHex.
9.FB.05Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex. 6 : P6
9.FB.05PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2OHex.
9.FB.05Sacrofanite(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2OHex.
9.FB.05Tounkite(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2OHex.
9.FB.05Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63
9.FB.05Marinellite(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2OTrig. 3m : P3 1c
9.FB.05Farneseite(Na,Ca,K)56(Al6Si6O24)7(SO4)12 · 6H2OHex. 6/m : P63/m
9.FB.05Alloriite(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6Trig. 3m : P3 1c
9.FB.05Biachellaite(Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2OTrig. 3 : P3
9.FB.05Fantappièite[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2OTrig. 3 : R3
9.FB.05KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)Hex. 6 : P63
9.FB.05Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)Hex. 6 : P63
9.FB.05CarbobystriteNa8(Al6Si6O24)(CO3) · 3.5H2OTrig. 3m : P3 1c
9.FB.05DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (xHex. 6 : P63
9.FB.05KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2OTrig. 3 2 : R3 2
9.FB.10BicchuliteCa2(Al2SiO6)(OH)2Iso. 4 3m : I4 3m
9.FB.10DanaliteBe3Fe2+4(SiO4)3SIso. 4 3m : P4 3n
9.FB.10GenthelviteBe3Zn4(SiO4)3SIso. 4 3m : P4 3n
9.FB.10Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)Iso. 4 3m : P4 3n
9.FB.10HelvineBe3Mn2+4(SiO4)3SIso. 4 3m : P4 3n
9.FB.10LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2,S3,Cl,OH)2Iso. 4 3m : P4 3n
9.FB.10NoseanNa8(Al6Si6O24)(SO4) · H2OIso. 4 3m : P4 3n
9.FB.10SodaliteNa4(Si3Al3)O12ClIso. 4 3m : P4 3n
9.FB.10TugtupiteNa4BeAlSi4O12ClTet. 4 : I4
9.FB.15MarialiteNa4Al3Si9O24ClTet. 4/m : I4/m
9.FB.15MeioniteCa4Al6Si6O24CO3Tet. 4/m : I4/m
9.FB.15Silvialite(Ca,Na)4(Al6Si6O24)(SO4,CO3)Tet. 4/m : I4/m

Related Minerals - Dana Grouping (8th Ed.)Hide,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P3 1c,K)7Ca(Al6Si6O24)(S5)ClHex.,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2OHex. 6 : P63 · 3H2OHex.,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2Trig. 3m : P3 1c · 2H2OHex.,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex. 6 : P6 · 2H2OHex.,K)6Ca2(Al6Si6O24)Cl4Hex. · 2H2OHex.,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2OHex.,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2OHex.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.10.1NoseanNa8(Al6Si6O24)(SO4) · H2OIso. 4 3m : P4 3n
17.10.2PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2OHex.
17.10.3Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63
17.10.4Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)Iso. 4 3m : P4 3n
17.10.5Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex. 6 : P6
17.10.7Tuscanite(K(Ca,Na)6(Si,Al)10O22[SO4,CO3,(OH)2] · H2OMon.
17.10.9Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2OOrth.
17.10.10HydrodelhayeliteKCa2AlSi7O17(OH)2 · 6H2OOrth.
17.10.12Afghanite(Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P3 1c
17.10.13Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
17.10.14Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2Trig. 3m : P3 1c
17.10.15Sacrofanite(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2OHex.
17.10.16Chessexite(Na,K)4Ca2(Mg,Zn)3Al8(SO4)10(SiO4)2 · 40H2OOrth.
17.10.17InneliteNa2CaBa4Ti3(Si2O7)2(SO4)2O4Tric. 1 : P1
17.10.18ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2OHex. 6 : P63
17.10.20ChlorellestaditeCa5(SiO4)1.5(SO4)1.5ClHex. 6/m : P63/m
17.10.21HydroxylellestaditeCa5(SiO4)1.5(SO4)1.5(OH)Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
17.10.22FluorellestaditeCa5(SiO4)1.5(SO4)1.5FHex. 6/m : P63/m
17.10.23MattheddleitePb5(SiO4)1.5(SO4)1.5(Cl,OH)Hex. 6/m : P63/m
17.10.24QueititePb4Zn2(SO4)(SiO4)(Si2O7)Mon. 2 : P21
17.10.25RoeblingitePb2Ca6Mn2+(Si3O9)2(SO4)2(OH)2 · 4H2OMon. 2/m : B2/m
17.10.26YoshimuraiteBa2Mn2Ti(Si2O7)(PO4)O(OH)Tric. 1 : P1
17.10.28Wenkite(Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2OHex.
17.10.30WeliniteMn2+6(W6+,Mg)2(SiO4)2(O,OH)6Trig. 3 : P3

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 DavyneHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Monticelli, T., Covelli, N. (1825) Davina. in Prodromo della Mineralogia Vesuviana, Napoli: 1: 405-421.
Haidinger, W. (1827) Über den Davyn, eine neue Mineralspecies. Annalen der Physik und Chemie: 87/F2-11: 470-474.
Pauling, L. (1930) The structure of some sodium and calcium aluminosilicates. Proceedings of the National Academy of Sciences: 16: 453-459.
Leoni, L., Mellini, M., Merlino, S., Orlandi, P. (1979) Cancrinite-like minerals: new data and crystal chemical considerations. Rendiconti della Società Italiana di Mineralogia e Petrologia: 35: 713-719.
Hassan, I., Grundy, H.D. (1984) The crystal structures of sodalite-group minerals. Acta Crystallographica: B40: 6-13.
Bonaccorsi E., Merlino S., Pasero M. (1990) Davyne: its structural relationships with cancrinite and vishnevite. Neues Jahrbuch für Mineralogie, Monatshefte: 3: 97-112.
Hassan, I., Grundy, H.D. (1990) Structure of davyne and implications for stacking faults. The Canadian Mineralogist: 28: 341-349.
Jambor, J.L., Burke, E.A.J. (1990) New mineral names. American Mineralogist: 75: 1431-1437.
Hassan, I., Buseck, P.R. (1992) The origin of the superstructure and modulations in cancrinite. The Canadian Mineralogist: 30: 49-59.
Ballirano, P., Maras, A., Buseck, P.R. (1996) Crystal chemistry and IR spectroscopy of Cl- and SO4-bearing cancrinite-like minerals. American Mineralogist: 81: 1003-1012.
Ballirano, P., Bonaccorsi, E., Merlino, S., Maras, A. (1998) Carbonate groups in davyne: structural and crystal-chemical considerations. The Canadian Mineralogist: 36: 1285-1292.
Rozenberg, K.A., Rastsvetaeva, R.K., Chukanov, N.V. (2009) Crystal structures of oxalate-bearing cancrinite with an unusual arrangement of CO3 groups and sulfate-rich davyne. Crystallography Reports: 54: 793-799.
Pekov, I.V., Olysych, L.V., Chukanov, N.V., Zubkova, N.V., Pushcharovsky, D.Y., Van, K., Giester, G., Tillmanns, E. (2011) Crystal chemistry of cancrinite-group minerals with an AB-type framework: A review and new data. I. Chemical and structural variations. The Canadian Mineralogist: 49: 1129-1150.
Chukanov, N.V., Pekov, I.V., Olysych, L.V., Zubkova, N.V., Vigasina, M.F., (2011) Crystal chemistry of cancrinite-group minerals with an AB-type framework: A review and new data. II. IR spectroscopy and its crystal-chemical implications. The Canadian Mineralogist: 49: 1151-1164.
Gatta, G.D., Lotti, P. (2016) Cancrinite-group minerals: Crystal-chemical description and properties under nonambient conditions — A review. American Mineralogist: 101: 253-265.

Internet Links for DavyneHide

Localities for DavyneHide

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.
  • Red Sea Governorate
Bonaccorsi E., Merlino S., Pasero M.(1991): Davyne from Zabargad (St. John's) Island: peculiar chemical and structural features. Acta Vulcanol., 2, 55-63.
  • Rhineland-Palatinate
    • Ahrweiler District
      • Brohltal
        • Brenk
Blass, G. and Graf, H.W. (2001) Interessante Neuigkeiten über Cancrinit, Fluorit und Fuchsit aus der Vulkaneifel. Mineralien-Welt, 1/2001.; Blaß, G. and Kruijen, F. (2015) Neuigkeiten aus der Vulkaneifel (II/2015). Mineralien-Welt, 26(5), 80-90.
        • Burgbrohl
Blass, G., Graf , HW., Neufunde von bekannten Fundorten (VI), MW 6/1992
        • Glees
Brauns, R. ; Uhlig, J., Cancrinit- und Nephelin-führende Auswürflinge aus dem Laacher See Gebiet, N.Jb. Mineral.Geol.Paläonolog., Beil. Band 56, Abt. A, 468-498, 1913
        • Spessart
          • Hannebach
Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 1983
    • Mayen-Koblenz District
      • Mendig
        • Mendig
Brauns, R. ; Uhlig, J., Cancrinit- und Nephelin-führende Auswürflinge aus dem Laacher See Gebiet, N.Jb. Mineral.Geol.Paläonolog., Beil. Band 56, Abt. A, 468-498, 1913
Brauns, R. ; Uhlig, J., Cancrinit- und Nephelin-führende Auswürflinge aus dem Laacher See Gebiet, N.Jb. Mineral.Geol.Paläonolog., Beil. Band 56, Abt. A, 468-498, 1913)
          • Wingertsberg
Brauns, R. ; Uhlig, J., Cancrinit- und Nephelin-führende Auswürflinge aus dem Laacher See Gebiet, N.Jb. Mineral.Geol.Paläonolog., Beil. Band 56, Abt. A, 468-498, 1913
      • Pellenz
        • Kruft
Brauns, R. ; Uhlig, J., Cancrinit- und Nephelin-führende Auswürflinge aus dem Laacher See Gebiet, N.Jb. Mineral.Geol.Paläonolog., Beil. Band 56, Abt. A, 468-498, 1913
        • Nickenich
Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 1983
      • Vordereifel
        • Ettringen
[Blass, G., Graf, H.W., Interessante Neuigkeiten über Cancrinit, Fluorit und Fuchsit aus der Vulkaneifel, Mineralien-Welt 12/1, 26-29, 2001] [Lapis, 15 (5), 9-36]
  • Campania
    • Naples
Russo, M. (2010) I minerali dell'Isola di Procida. Poster. Publisher: Associazione Vivara Onlus.
      • Somma-Vesuvius Complex
NJMM (1990) (3), 97
          • Ercolano
            • San Vito
          • Pollena Trocchia
Carati M., 1982. Guida alla mineralogia vesuviana. Guide Calderini, Bologna.
M. Carati - Guida alla mineralogia vesuviana - Calderini, Bologna, 1982
[BINON J., BONACCORSI E., BERNHARDT H.J., FRANSOLET A. M. (2004) - The mineralogical status of "cavolinite" from Vesuvius, Italy, and crystallochemical data on the davyne subgroup. Eur. J. Mineral., 16 (3), 511-520] [Russo, M., Punzo, I. (2004): I minerali del Somma-Vesuvio, AMI]
          • Terzigno
Luigi Chiappino data
  • Lazio
    • Metropolitan City of Rome Capital
      • Campagnano di Roma
Liotti L., Tealdi E. (1983): Il vulcanismo Sabatino ed i minerali della Caldera di Sacrofano. Riv. Miner. Ital., 7, 2 (2-1983), 35-58.
      • Sacrofano
Stoppani F.S., Curti E. (1982): I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
    • Viterbo Province
Stoppani, F.S., Curti, E. (1982): I Minerali del Lazio. Ed. Olimpia, Firenze, 154-158
No reference listed,11,349184,349184,page=1#msg-349184
      • Viterbo
Fantappiè L. (1896): La Danburite ed altri minerali: in alcuni pezzi notevoli di rocce antiche, tra i “blocchi errratici” della regione Cimina. Rend. R. Acc. Naz. Lincei, Classe sci. fis. mat. nat., ser. 5, 5, 2, 108-113; Fantappiè L. (1897): Nuove osservazioni su minerali dei blocchi erratici della regione cimina. Riv. Miner. e Crist. Ital., 17, 3-19; Stoppani F.S, Curti E. (1982): I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
  • Tuscany
    • Grosseto Province
      • Pitigliano
Liotti L., 1991. I minerali dei vulcani laziali a Pitigliano (Grosseto). Riv. Mineral. Ital., 15 (3): 121-139.
Mineral and/or Locality  
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