Gmelinite-Ca
This page is currently not sponsored. Click here to sponsor this page.
About Gmelinite-Ca
Formula:
Ca2(Si8Al4O24] · 11H2O
Lustre:
Vitreous
Hardness:
4½
Crystal System:
Hexagonal
Member of:
Name:
Named by David Brewster in 1825 in honor of the German mineralogist and chemist, Christian Gottlob Gmelin (1792-1860) of University of Tübingen, Germany.
This page provides mineralogical data about Gmelinite-Ca.
Classification of Gmelinite-Ca
Approved
8/J.26-54
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
Physical Properties of Gmelinite-Ca
Vitreous
Hardness:
4½ on Mohs scale
Optical Data of Gmelinite-Ca
Type:
Uniaxial (+/-)
RI values:
nα = 1.474 - 1.481 nβ = 1.476 - 1.494
Max Birefringence:
δ = 1.474

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
Chemical Properties of Gmelinite-Ca
Formula:
Ca2(Si8Al4O24] · 11H2O
IMA Formula:
Ca2(Si8Al4)O24 · 11H2O
Crystallography of Gmelinite-Ca
Crystal System:
Hexagonal
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
---|---|---|---|---|---|---|---|
0015870 | Gmelinite-Ca | Sacerdoti M, Passaglia E, Carnevali R (1995) Structural refinements of Na-, K-, and Ca-exchanged gmelinites Zeolites 15 276-281 | 1995 | San Giorgio perlena, Fara Vincentina, Vicenza, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Image Loading
Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Type Occurrence of Gmelinite-Ca
Other Language Names for Gmelinite-Ca
Russian:Гмелинит-Ca
Simplified Chinese:钙菱沸石
Relationship of Gmelinite-Ca to other Species
Member of:
Other Members of this group:
Gmelinite-K | K4(Si8Al4O24) · 11H2O | Hex. |
Gmelinite-Na | Na4(Si8Al4O24] · 11H2O | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
Common Associates
Associated Minerals Based on Photo Data:
8 photos of Gmelinite-Ca associated with Chabazite | |
5 photos of Gmelinite-Ca associated with Calcite | CaCO3 |
4 photos of Gmelinite-Ca associated with Analcime | Na(AlSi2O6) · H2O |
3 photos of Gmelinite-Ca associated with Chabazite-Ca | (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O |
3 photos of Gmelinite-Ca associated with Phillipsite subgroup | |
1 photo of Gmelinite-Ca associated with Natrolite | Na2Al2Si3O10 · 2H2O |
1 photo of Gmelinite-Ca associated with Smectite Group | A0.3D2-3[T4O10]Z2 · nH2O |
Related Minerals - Nickel-Strunz Grouping
9.GD.05 | Gmelinite-K | K4(Si8Al4O24) · 11H2O | Hex. |
9.GD.05 | Gmelinite-Na | Na4(Si8Al4O24] · 11H2O | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
9.GD.10 | Willhendersonite | KCa[Al3Si3O12] · 5H2O | Tric. |
9.GD.10 | Chabazite-Ca | (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O | Tric. 1 : P1 |
9.GD.10 | Chabazite-K | (K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O | Trig. 3m (3 2/m) : R3m |
9.GD.10 | Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O | Hex. |
9.GD.10 | Chabazite-Sr | Sr2[Al2Si4O12]2 · 12H2O | Trig. 3m (3 2/m) : R3m |
9.GD.10 | Chabazite-Mg | (Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24] · 10H2O | Trig. 3m (3 2/m) : R3m |
9.GD.15 | Lévyne-Ca | (Ca,Na2,K2)[Al2Si4O12] · 6H2O | Trig. 3m (3 2/m) : R3m |
9.GD.15 | Lévyne-Na | (Na2,Ca,K2)[Al2Si4O12] · 6H2O | Trig. |
9.GD.20 | Bellbergite | (K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O | Hex. |
9.GD.20 | Erionite-Ca | (Ca,K2,Na2)2[Al4Si14O36] · 15H2O | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
9.GD.20 | Erionite-K | (K2,Ca,Na2)2[Al4Si14O36] · 15H2O | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
9.GD.20 | Erionite-Na | (Na2,K2,Ca)2[Al4Si14O36] · 15H2O | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
9.GD.25 | Offretite | KCaMg(Si13Al5)O36 · 15H2O | Hex. 6 m2 : P6m2 |
9.GD.25 | Wenkite | (Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2O | Hex. |
9.GD.30 | Faujasite-Ca | (Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2O | Iso. |
9.GD.30 | Faujasite-Mg | (Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O | Iso. |
9.GD.30 | Faujasite-Na | (Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O | Iso. |
9.GD.35 | Maricopaite | Pb7Ca2(Si,Al)48O100 · 32H2O | Orth. |
9.GD.35 | Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O | Orth. |
9.GD.40 | Dachiardite-Ca | (Ca,Na2,K2)5Al10Si38O96 · 25H2O | Mon. |
9.GD.40 | Dachiardite-Na | (Na2,Ca,K2)5Al10Si38O96 · 25H2O | Mon. |
9.GD.45 | Epistilbite | CaAl2Si6O16 · 5H2O | Mon. |
9.GD.50 | Ferrierite-K | (K,Na)5(Si31Al5)O72 · 18H2O | Orth. |
9.GD.50 | Ferrierite-Mg | [Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O | Orth. |
9.GD.50 | Ferrierite-Na | (Na,K)5(Si31Al5)O72 · 18H2O | Mon. 2/m |
9.GD.55 | Bikitaite | LiAlSi2O6 · H2O | Tric. 1 : P1 |
Other Information
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-Ca
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Neues Jahrbuch für Mineralogie, Monatshefte (1978): 310-324.
Neues Jahrbuch für Mineralogie, Monatshefte (1982): 145-155.
Internet Links for Gmelinite-Ca
mindat.org URL:
https://www.mindat.org/min-6971.html
Please feel free to link to this page.
Please feel free to link to this page.
External Links:
Mineral Dealers:
Localities for Gmelinite-Ca
Locality List




All localities listed without proper references should be considered as questionable.
Australia | |
| Ralph Bottrill |
Canada | |
| Marsh, O.C. (1867) Contributions to the Mineralogy of Nova Scotia, No. 1 - Ledererite Identical with Gmelinite. American Journal of Science: 94: 362-367. |
Tschernich, R. (1992) Zeolites of the World. Geoscience Press Inc.: 563 pgs (205). | |
Cyprus | |
| Prüfer, P. (2010): Mineralien der Insel Zypern. Der Aufschluss 61, 97-106. (in German) |
| Prüfer, P. (2012): Mineralien der Insel Zypern (3). Aufschluss 63, 261-269. |
Germany | |
| Klein, E. (2011): Der Steinbruch Mahlscheid bei Herdorf im Siegerland. Mineralien Welt. 22 (3): 28-35 |
Hungary | |
| Kónya-MÁFI,2008; 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 | |
| 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. | |
| Mattioli, M., Cenni, M., and Raffaelli, G. (2008) I Minerali del Veronese. Le mineralizzazioni secondarie delle rocce vulcaniche dei Monti Lessini. Memorie del Museo Civico di Storia Naturale di Verona, 2a serie, Sezione Scienze della Terra 7-2008, 196 pp. |
Martins da Pedra | |
Mattioli, M., Cenni, M., and Raffaelli, G. (2008) I Minerali del Veronese. Le mineralizzazioni secondarie delle rocce vulcaniche dei Monti Lessini. Memorie del Museo Civico di Storia Naturale di Verona, 2a serie, Sezione Scienze della Terra 7-2008, 196 pp. | |
| Boscardin, M., Pegoraro, S.(2000): La natrolite del vicentino. Rivista |
| Neues Jahrb. Mineral., Monatsh. (1982) 145; Can. Mineral. (1997) 35, 1571 |
Kazakhstan | |
| |
Joan Rosell - Rosellminerals.com | |
Norway | |
| Berentzen, H. Chr. (2013): Gmelinitt-Ca fra Blomøy, Øygarden. Stein. 40(3),14-15 |
| Dalen, K.E. (2011): Ein kristallfund am Nordmeer. Mineralien Welt. 22 (4): 78-80 |
Berentzen, H. Chr. (2013): Gmelinitt-Ca fra Blomøy, Øygarden. Stein. 40 (3),14-15 | |
Russia | |
| www.koeln.netsurf.de/~w.steffens/lovo.htm |
| Yakovenchik, V.N., Ivaniuk, G.Yu., Pakhomovsky, Ya.A., Selivanova, E.A., Men'shikov, Yu.P., Korchak, J.A., Krivovichev, S.V., Spiridonova, D.V., Zalkind, O.A. (2010): Punkaruaivite, Li{Ti2(OH)2[Si4O11(OH)]}•H2O, a new mineral species from hydrothermalites of Khibiny and Lovozero alkaline massifs (Kola Peninsula, Russia). Canadian Mineralogist, 48, 41-50. |
Yakovenchuk, V. N., Ivanyuk, G. Y., Krivovichev, S. V., Pakhomovsky, Y. A., Selivanova, E. A., Korchak, J. A., ... & Zalkind, O. A. (2011). Eliseevite, Na1. 5Li [Ti2Si4O12. 5 (OH) 1.5]∙ 2H2O, a new microporous titanosilicate from the Lovozero alkaline massif (Kola Peninsula, Russia). American Mineralogist, 96(10), 1624-1629. | |
USA | |
| Am Min 58:405-411 |
Bagattei, San Giovanni Ilarione, Verona Province, Veneto, Italy