Gmelinite-Na
A valid IMA mineral species - grandfathered
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About Gmelinite-Na
Christian Gottlob Gmelin
Formula:
Na4(Si8Al4)O24 · 11H2O
Colour:
Colorless, white, reddish white, salmon-red, yellowish, greenish white
Lustre:
Vitreous
Hardness:
4½
Specific Gravity:
2.02 - 2.17
Crystal System:
Hexagonal
Member of:
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 suffix indicates the dominant extra-framework cation. In 1997, the name gmelinite (without suffix) was promoted from species to series and gmelinite-Na was defined as one of several species.
This page provides mineralogical data about Gmelinite-Na.
Unique Identifiers
Mindat ID:
6973
Long-form identifier:
mindat:1:1:6973:7
GUID
(UUID V4):
(UUID V4):
8b0243d2-7a76-4a40-bd03-3497779363c4
IMA Classification of Gmelinite-Na
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Gmelinite-Na
9.GD.05
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites
9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Gme-Na | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Gme | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
Physical Properties of Gmelinite-Na
Vitreous
Transparency:
Transparent, Translucent, Opaque
Colour:
Colorless, white, reddish white, salmon-red, yellowish, greenish white
Streak:
White
Hardness:
4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
Distinct on {1010}
Distinct on {1010}
Parting:
{0001}
Fracture:
Irregular/Uneven
Density:
2.02 - 2.17 g/cm3 (Measured) 2.098 g/cm3 (Calculated)
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.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Comments:
May be anomalously biaxial.
Chemistry of Gmelinite-Na
Mindat Formula:
Na4(Si8Al4)O24 · 11H2O
Crystallography of Gmelinite-Na
Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Setting:
P63/mmc
Cell Parameters:
a = 13.78(2) Å, c = 10.03(5) Å
Ratio:
a:c = 1 : 0.728
Unit Cell V:
1,649.42 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Pyramidal, tabular, rhombohedral
Twinning:
Pernetration common on {1011}
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0015871 | Gmelinite-Na | Sacerdoti M, Passaglia E, Carnevali R (1995) Structural refinements of Na-, K-, and Ca-exchanged gmelinites Zeolites 15 276-281 | 1995 | Montecchio Maggiore, Vicenza, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
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Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.106 Å | (100) |
| 11.908 Å | (63) |
| 2.978 Å | (55) |
| 2.690 Å | (44) |
| 3.227 Å | (41) |
| 7.68 Å | (29) |
| 5.026 Å | (28) |
Comments:
Montecchio Maggiore, Italy.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3b: Earth’s earliest hydrosphere | >4.45 |
| 16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23) | |
| Near-surface Processes | |
| 23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) |
Geological Setting:
In basalts and pegmatites.
Type Occurrence of Gmelinite-Na
Other Language Names for Gmelinite-Na
Relationship of Gmelinite-Na to other Species
Member of:
Other Members of this group:
| Gmelinite-Ca | Ca2(Si8Al4)O24 · 11H2O | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
| Gmelinite-K | K4(Si8Al4O24) · 11H2O | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
Common Associates
Associated Minerals Based on Photo Data:
| 58 photos of Gmelinite-Na associated with Analcime | Na(AlSi2O6) · H2O |
| 31 photos of Gmelinite-Na associated with Natrolite | Na2Al2Si3O10 · 2H2O |
| 30 photos of Gmelinite-Na associated with Microcline | K(AlSi3O8) |
| 28 photos of Gmelinite-Na associated with Gobbinsite | Na5(Si11Al5)O32 · 11H2O |
| 18 photos of Gmelinite-Na associated with Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| 14 photos of Gmelinite-Na associated with Calcite | CaCO3 |
| 14 photos of Gmelinite-Na associated with Pyrite | FeS2 |
| 12 photos of Gmelinite-Na associated with Phillipsite-Ca | Ca3(Si10Al6)O32 · 12H2O |
| 11 photos of Gmelinite-Na associated with Faujasite-Na | (Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O |
| 11 photos of Gmelinite-Na associated with Dawsonite | NaAlCO3(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 9.GD.05 | Gmelinite-Ca | Ca2(Si8Al4)O24 · 11H2O |
| 9.GD.05 | Gmelinite-K | K4(Si8Al4O24) · 11H2O |
| 9.GD.10 | Willhendersonite | KCa[Al3Si3O12] · 5H2O |
| 9.GD.10 | Chabazite-Ca | (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O |
| 9.GD.10 | Chabazite-K | (K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| 9.GD.10 | Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| 9.GD.10 | Chabazite-Sr | Sr2[Al2Si4O12]2 · 12H2O |
| 9.GD.10 | Chabazite-Mg | (Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24] · 10H2O |
| 9.GD.15 | Lévyne-Ca | (Ca,Na2,K2)[Al2Si4O12] · 6H2O |
| 9.GD.15 | Lévyne-Na | (Na2,Ca,K2)[Al2Si4O12] · 6H2O |
| 9.GD.20 | Bellbergite | (K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O |
| 9.GD.20 | Erionite-Ca | (Ca,K2,Na2)2[Al4Si14O36] · 15H2O |
| 9.GD.20 | Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O |
| 9.GD.20 | Erionite-Na | (Na2,K2,Ca)2[Al4Si14O36] · 15H2O |
| 9.GD.25 | Offretite | KCaMg(Si13Al5)O36 · 15H2O |
| 9.GD.25 | Wenkite | (Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2O |
| 9.GD.30 | Faujasite-Ca | (Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2O |
| 9.GD.30 | Faujasite-Mg | (Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O |
| 9.GD.30 | Faujasite-Na | (Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O |
| 9.GD.35 | Maricopaite | Pb7Ca2(Si,Al)48O100 · 32H2O |
| 9.GD.35 | Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| 9.GD.40 | Dachiardite-K | K4(Si20Al4O48) · 13H2O |
| 9.GD.40 | Dachiardite-Ca | (Ca,Na2,K2)5Al10Si38O96 · 25H2O |
| 9.GD.40 | Dachiardite-Na | (Na2,Ca,K2)5Al10Si38O96 · 25H2O |
| 9.GD.45 | Epistilbite | CaAl2Si6O16 · 5H2O |
| 9.GD.50 | Ferrierite-K | (K,Na)5(Si31Al5)O72 · 18H2O |
| 9.GD.50 | Ferrierite-Mg | [Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O |
| 9.GD.50 | Ferrierite-Na | (Na,K)5(Si31Al5)O72 · 18H2O |
| 9.GD.50 | Ferrierite-NH4 | (NH4,Mg0.5)5(Al5Si31O72) · 22H2O |
| 9.GD.55 | Bikitaite | LiAlSi2O6 · H2O |
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.
Internet Links for Gmelinite-Na
mindat.org URL:
https://www.mindat.org/min-6973.html
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References for Gmelinite-Na
Reference List:
Howe, A. B. (1876) On gmelinite from Nova Scotia. American Journal of Science, S. 3 Vol. s3-12 (70) 270-274 doi:10.2475/ajs.s3-12.70.270
Sacerdoti, M., Passaglia, E., Carnevali, R. (1995) Structural refinements of Na-, K-, and Ca-exchanged gmelinites. Zeolites, 15 (3) 276-281 doi:10.1016/0144-2449(94)00024-m
Coombs, Douglas S., Alberti, Alberto, Armbruster, Thomas, Artioli, Gilberto, Colella, Carmine, Galli, Ermanno, Grice, Joel D., Liebau, Friedrich, Mandarino, Joseph A., Minato, Hideo, Nickel, Ernest H., Passaglia, Elio, Peacor, Donald R., Quartieri, Simona, Rinaldi, Romano, Ross, Malcolm I., Sheppard, Richard A., Tillmanns, Ekkehart, Vezzalini, Giovanna (1997) Recommended nomenclature for zeolite minerals; report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35 (6) 1571-1606
Localities for Gmelinite-Na
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Australia | |
| Sutherland et al. (2004) |
| Birch (1989) |
| Henderson et al. (1986) | |
| Tschernich (1992) |
Canada | |
| Howe (1876) |
| Tschernich (1992) | |
| Howe (1876) |
| 166-175. +2 other references |
| Horváth et al. (1998) |
| Horváth Collection - gmelinite-Na ... +1 other reference | |
Cyprus | |
| Prüfer (2011) |
| Passaglia et al. (1978) |
Czech Republic | |
| Bárta +1 other reference |
Germany | |
| |
Greenland | |
| Pekov et al. (2012) |
Hungary | |
| GEODA +1 other reference |
Italy | |
| Sicurella et al. (2010) |
| Sicurella et al. (2010) | |
| Brewster (1825) +1 other reference |
Japan | |
| Kuwano et al. (1982) |
| Chiba et al (1995) |
Russia | |
| ... |
| Pavel.M. Kartashov (n.d.) |
| Pekov (2000) |
| Pekov et al. (2013) |
UK | |
| S. Moreton |
| Walker (1959) +1 other reference |
| Passaglia et al. (1978) |
USA | |
| Arletti (2005) |
| Tony Nikischer |
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Cairns Bay, Flinders area, Mornington Peninsula Shire, Victoria, Australia