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Gmelinite-Na

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Christian Gottlob Gmelin
Formula:
Na4(Si8Al4O24] · 11H2O
System:
Hexagonal
Colour:
Colorles, white, reddish ...
Lustre:
Vitreous
Hardness:
Name:
Named by David Brewster in 1825 in honor of the mineralogist and professor of chemistry, Christian Gottlob Gmelin [October 12, 1792- May 13, 1860] of the University of Tübingen, Germany.
The sodium-dominant member of the Gmelinite subgroup.



Classification of Gmelinite-Na

Approved, 'Grandfathered' (first described prior to 1959)
9.GD.05

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites

Occurrences of Gmelinite-Na

Type Occurrence of Gmelinite-Na

Physical Properties of Gmelinite-Na

Vitreous
Diaphaneity (Transparency):
Transparent, Translucent, Opaque
Colour:
Colorles, white, reddish white, salmon-red, yellowish, greenish white
Hardness (Mohs):
Tenacity:
Brittle
Cleavage:
Distinct/Good
Distinct on {1010}
Parting:
{0001}
Fracture:
Irregular/Uneven
Density:
2.02 - 2.17 g/cm3 (Measured)    2.098 g/cm3 (Calculated)

Crystallography of Gmelinite-Na

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Space Group Setting:
P63/mmc
Cell Parameters:
a = 13.78(2) Å, c = 10.03(5) Å
Ratio:
a:c = 1 : 0.728
Unit Cell Volume:
V 1,649.42 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Pyrimidal, tabular, rhombohedral
Twinning:
Pernetration common on {1011}
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Gmelinite-Na

Type:
Uniaxial (+/-)
RI values:
nω = 1.476 - 1.494 nε = 1.474 - 1.480
Max Birefringence:
δ = 0.002 - 0.014
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Comments:
May be anomalously biaxial.

Chemical Properties of Gmelinite-Na

Formula:
Na4(Si8Al4O24] · 11H2O
All elements listed in formula:

Relationship of Gmelinite-Na to other Species

Other Members of Group:
Gmelinite-CaCa2(Si8Al4O24] · 11H2O
Gmelinite-KK4(Si8Al4O24) · 11H2O
9.GD.05Gmelinite-CaCa2(Si8Al4O24] · 11H2O
9.GD.05Gmelinite-KK4(Si8Al4O24) · 11H2O
9.GD.10WillhendersoniteKCa[Al3Si3O12] · 5H2O
9.GD.10Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
9.GD.10Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
9.GD.10Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
9.GD.10Chabazite-SrSr2[Al2Si4O12]2 · 12H2O
9.GD.10Chabazite-Mg(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24]·10H2O
9.GD.15Lévyne-Ca(Ca,Na2,K2)[Al2Si4O12] · 6H2O
9.GD.15Lévyne-Na(Na2,Ca,K2)[Al2Si4O12] · 6H2O
9.GD.20Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O
9.GD.20Erionite-Ca(Ca,K2,Na2)2[Al4Si14O36] · 15H2O
9.GD.20Erionite-K(K2,Ca,Na2)2[Al4Si14O36] · 15H2O
9.GD.20Erionite-Na(Na2,K2,Ca)2[Al4Si14O36] · 15H2O
9.GD.25OffretiteKCaMg(Si13Al5)O36 · 15H2O
9.GD.25Wenkite(Ba,K)4(Ca,Na)6[(SO4)3|(Si,Al)20O39(OH)2] · 0.5H2O
9.GD.30Faujasite-Ca(Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2O
9.GD.30Faujasite-Mg(Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O
9.GD.30Faujasite-Na(Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O
9.GD.35MaricopaitePb7Ca2(Si,Al)48O100 · 32H2O
9.GD.35Mordenite(Na2,Ca,K2)Al2Si10O24 · 7H2O
9.GD.40Dachiardite-Ca(Ca,Na2,K2)5Al10Si38O96 · 25H2O
9.GD.40Dachiardite-Na(Na2,Ca,K2)5Al10Si38O96 · 25H2O
9.GD.45EpistilbiteCaAl2Si6O16 · 5H2O
9.GD.50Ferrierite-K(K2,Na2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
9.GD.50Ferrierite-Mg(Mg,Na2,K2,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
9.GD.50Ferrierite-Na(Na2,K2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
9.GD.55BikitaiteLiAlSi2O6 · H2O

Other Names for Gmelinite-Na

Name in Other Languages:
Simplified Chinese:钠菱沸石
Traditional Chinese:鈉菱沸石

Other Information

Electrical:
Piezeoelectric
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 Gmelinite-Na

Reference List:
Neues Jahrbuch für Mineralogie, Monatshefte (1978): 310-324.

Neues Jahrbuch für Mineralogie, Monatshefte (1982): 145-155.

Internet Links for Gmelinite-Na

mindat.org URL:
http://www.mindat.org/min-6973.html
Please feel free to link to this page.

Localities for Gmelinite-Na

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.
Australia
 
  • Tasmania
    • Moina District (Middlesex District)
Sutherland, F. & Bottrill, R.(2004): Zeolites of western Tasmania. Australian Jornal of Mineralogy 10:2 pp 59-72
  • Victoria
Tschernich, R. (1992): Zeolites of the World, p.49
Min Rec 17:6 p377-379
Canada
 
  • Nova Scotia
    • Cumberland Co.
HOWE, A.B. (1876) Gmelinite from Nova Scotia, American Journal of Science, 719-720.
Tschernich, R. (1992): Zeolites of the World, p.201,204
HOWE, A.B. (1876) Gmelinite from Nova Scotia, American Journal of Science, 719-720.
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Horváth, L. & Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record, 21, 284-359. [Unpubl. data = gmelinite-Na]
      • Lajemmerais RCM
        • Varennes & St-Amable
HORVÁTH, L., PFENNINGER HORVÁTH, E., GAULT, R.A., and TARASSOFF, P. (1998) Mineralogy of the Saint Amable sill, Varennes and Saint Amable, Québec, Canada. Mineralogical Record, 29, 83 118.
Horváth Collection - gmelinite-Na confirmed by XRD & microprobe; Horváth, L., Pfenninger-Horváth, E., Gault, R. A., & Tarassoff, P. (1998): Mineralogy of the Saint-Amable Sill, Varennes and Saint-Amable, Québec. Mineralogical Record, 29: 83-118.
Cyprus
 
  • Larnaca District (Larnaka District; İskele District)
Prüfer, P. (2011): Mineralien der Insel Zypern (2). Der Aufschluss 62, 175-186 (in German).
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Ústí Region
      • Děčín (Tetschen)
Bárta J, Rychlý R. Nález gmelinitu na lokalitě Dobranka u Děčína. Čas. Mineral. Geol. 24, 434. Praha; Bárta J, Rychlý R. Nález gmelinitu na lokalitě Dobranka u Děčína. Čas. Mineral. Geol. 1979, 24, 434. Praha
Germany
 
  • Lower Saxony
    • Harz
      • St Andreasberg District
        • St Andreasberg
No reference listed
No reference listed
Greenland
 
  • Kujalleq
    • Narsaq
      • Ilímaussaq complex
Pekov, I.V., Zubkova, N.V.,Husdal, T.A., Kononkova, N.N., Agakhanov, A.A., Zadov, A.E. and Pushcharovsky, D.Y. (2012): Carlgieseckeite-(Nd), NaNdCa3(PO4)3F, a new belovite-group mineral species from the Ilímaussaq alkaline complex, South Greenland. Canadian Mineralogist. 50, 571-580
Hungary
 
  • Veszprém Co.
    • Balaton Uplands
      • Tapolcai Basin
        • Zalahaláp
GEODA, 2000; Kónya, P. and Szakáll, S. (2011): Occurrence, composition and paragenesis of the zeolites and associated minerals in the alkaline basalt of a maar-type volcano at Haláp Hill, Balaton Highland, Hungary. Mineralogical Magazine 75, 2869-2885.
Italy
 
  • Sicily
    • Catania Province
      • Northern Iblean plateau
Sicurella, G., Russo, S., Ciriotti, M.E., Blass, G. (2010): Mineralogia della formazione di Monte Caliella, Palagonia (Catania, Sicilia). Micro (località), 2/2010, 371-408
Sicurella, G., Russo, S., Ciriotti, M.E., Blass, G. (2010): Mineralogia della formazione di Monte Caliella, Palagonia (Catania, Sicilia). Micro (località), 2/2010, 371-408.
  • Veneto
    • Vicenza Province
      • Montecchio Maggiore
        • San Pietro
Edinburgh J. Sci. (1825) 2, 262; Can. Mineral. (1997) 35, 1571
Japan
 
  • Honshu Island
    • Chubu Region
      • Niigata Prefecture
        • Sado Island
Chiba et al (1995) Bulletin of the National Science Museum, 21, 61-69.
  • Kyushu Region
    • Fukuoka prefecture
Kuwano, N. & Matsueda, H. (1982) Geoscience Magazine, 33, 79-84.
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
www.koeln.netsurf.de/~w.steffens/lovo.htm
          • Alluaiv Mt
            • Umbozero mine (Umbozerskii mine; Umba Mine)
Pavel M. Kartashov analytical data
UK
 
  • Northern Ireland
    • Co. Antrim
      • Island Magee
Walker, G.P.L. (1959) Mineralogical Magazine 32(246), p. 202-217.
      • Larne
Passaglia, E., Pongiluppi, D., Vezzalini, G. (1978): The crystal chemistry of gmelinites. Neues Jahrb Miner Monatsheft 1978, 310-324
USA
 
  • California
    • Kern Co.
      • Kramer District (Kramer Borate District)
        • Boron
          • Kramer Borate deposit
            • U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; Boron open pit; U.S. Borax and Chemical Corporation Mine; Kramer Mine; Kramer pit; Baker Mine)
Am Min 90:1186-1191
  • New Jersey
    • Passaic Co.
      • Prospect Park
Tony Nikischer
Mineral and/or Locality  
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