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About DepmeieriteHide

Wulf H. H. Depmeier
Na8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5)
Specific Gravity:
Crystal System:
Named in 2010 by Igor V. Pekov, L. V. Olysych, N. V. Chukanov, K. V. Van, and D. Yury Pushcharovsky in honor of German crystallographer and mineralogist Wulf Helmut Heinz Depmeier [b.1944], Professor of Mineralogy and Crystallography at Christian-Albrechts University in Kiel. He is a well known specialist in crystal chemistry of the sodalite-cancrinite family of minerals and structurally related synthetic compounds.
Cancrinite group; the PO4-dominant analogue of cancrinite, vishnevite, hydroxycancrinite and kyanoxalite, first found in the Karnasurt mine, the underground workings on Mt Karnasurt.

Classification of DepmeieriteHide

Approval Year:
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

Physical Properties of DepmeieriteHide

Coarse grains have a bluish tint
on {1010}
2.32(1) g/cm3 (Measured)    2.313 g/cm3 (Calculated)

Optical Data of DepmeieriteHide

Uniaxial (+)
RI values:
nω = 1.493() nε = 1.497(2)
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 DepmeieriteHide

Na8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5)
IMA Formula:
Na8[Al6Si6O24](PO4,CO3)1-x · 3H2O (x< 0.5)

Crystallography of DepmeieriteHide

Crystal System:
Class (H-M):
6 - Pyramidal
Space Group:
Cell Parameters:
a = 12.7345(2) Å, c = 5.1798(1) Å
a:c = 1 : 0.407
Unit Cell V:
727.46 ų

X-Ray Powder DiffractionHide

Powder Diffraction Data:
6.380 (30)
4.695 (91)
3.681 (37)
3.250 (100)
2.758 (33)
2.596 (31)
2.436 (21)
2.121 (24)

Type Occurrence of DepmeieriteHide

General Appearance of Type Material:
Equant grains up to 1 cm in size.
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia (registration no. 3882/1).
Geological Setting of Type Material:
In a 1.5 cm thick hydrothermal veinlet cutting the peralkaline rocks of a differentiated foyaite–urtite–lujavrite complex.
Associated Minerals at Type Locality:
Pekov, I.V., Olysych, L.V., Chukanov, N.V., Van, K.V., Pushcharovsky, D.Yu. (2010) Depmeierite, Na8[Al6Si6O24](PO4,CO3)1-x·3H2O (x < 0.5) - a new cancrinite-group mineral from the Lovozero alkaline massif (Kola Peninsula, Russia). Zapiski Rossiyskogo Mineralogicheskogo Obshchestva: 139(4): 63-74 (in Russian).

Synonyms of DepmeieriteHide

Relationship of Depmeierite 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.
Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2Hex. 6/m : P63/m
Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
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
Marinellite(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2OTrig. 3m : P3 1c
PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2OHex.
SulfhydrylbystriteNa5K2Ca[Al6Si6O24](S5)2(SH)Trig. 3m : P3 1c
Tounkite(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2OHex.
Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63

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.05Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2Hex. 6/m : P63/m
9.FB.05Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
9.FB.05HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2OHex.
9.FB.05PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 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.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.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.10SodaliteNa8(Al6Si6O24)Cl2Iso. 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,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2OTrig. 3 : P3èite[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2OTrig. 3 : R3 · 5H2O (0 < x < 0.5)Hex. 6 : P63 · 5H2O (0 < x < 0.5),K)6Ca2(Si6Al6O24)Cl2(CO3)Hex. 6 : P63 · 0.33H2OTrig. 3 2 : R3 2

Fluorescence of DepmeieriteHide

Non fluorescent.

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 DepmeieriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Williams, P.A., Hatert, F., Pasero, M. (2009) New minerals approved in 2009. in International Mineralogical Association: 1-34.
Pekov, I.V., Olysych, L.V., Chukanov, N.V., Van, K.V., Pushcharovsky, D.Yu. (2010) Depmeierite, Na8[Al6Si6O24](PO4,CO3)1-x·3H2O (x < 0.5) - a new cancrinite-group mineral from the Lovozero alkaline massif (Kola Peninsula, Russia). Zapiski Rossiyskogo Mineralogicheskogo Obshchestva: 139(4): 63-74 (in Russian).
Pekov, I.V., Olysych, L.V., Zubkova, N.V., Chukanov, N.V., Van, K.V., Pushcharovsky, D.Y. (2011) Depmeierite Na8[Al6Si6O24](PO4,CO3)1-x·3H2O (x<0.5): A new cancrinite-group mineral species from the Lovozero alkaline pluton of the Kola Peninsula. Geology of Ore Deposits: 53: 604-613.
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.
Belakovskiy, D., Tait, K.T. (2012) New mineral names. American Mineralogist: 97: 1818-1820.

Internet Links for DepmeieriteHide

Localities for DepmeieriteHide

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.
  • Occitanie
    • Aveyron
Kruszewski, Ł., Gatel, P., Thiéry, V., Moszumańska, I., Kusy, D. (2018)(?): Lapanouse-de-Sévérac (France): an example of unique crystallochemical behaviour of slag minerals and new mineral potential. Coal and Peat Fires, vol. 5, xx-xx (in review/correction); Ł. Kruszewski EPMA/PXRD/Rietveld data
Russia (TL)
  • Northern Region
    • Murmanskaya Oblast'
      • Lovozero Massif
Pekov I.V., Olysych L.V., Zubkova N.V., Chukanov N.V., Van K.V., Pushcharovsky D.Yu. (2010) Depmeierite, Na8[Al6Si6O24](PO4,CO3)1-x·3H2O (x < 0.5), a new cancrinite-group mineral from the Lovozero alkaline complex, Kola Peninsula, Russia // Zapiski RMO, in press.
Mineral and/or Locality  
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