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Gmelinite-Ca

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Christian Gottlob Gmelin
Formula:
Ca2(Si8Al4O24] · 11H2O
Lustre:
Vitreous
Hardness:
Crystal System:
Hexagonal
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
9.GD.05

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.
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

X-Ray Powder Diffraction

Image Loading

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

Type Occurrence of Gmelinite-Ca

Other Language Names for Gmelinite-Ca

Simplified Chinese:钙菱沸石

Relationship of Gmelinite-Ca to other Species

Other Members of this group:
Gmelinite-KK4(Si8Al4O24) · 11H2O
Gmelinite-NaNa4(Si8Al4O24] · 11H2O

Common Associates

Associated Minerals Based on Photo Data:
Chabazite8 photos of Gmelinite-Ca associated with Chabazite on mindat.org.
Calcite5 photos of Gmelinite-Ca associated with Calcite on mindat.org.
Analcime4 photos of Gmelinite-Ca associated with Analcime on mindat.org.
Chabazite-Ca3 photos of Gmelinite-Ca associated with Chabazite-Ca on mindat.org.
Phillipsite3 photos of Gmelinite-Ca associated with Phillipsite on mindat.org.
Natrolite1 photo of Gmelinite-Ca associated with Natrolite on mindat.org.
Smectite Group1 photo of Gmelinite-Ca associated with Smectite Group on mindat.org.

Related Minerals - Nickel-Strunz Grouping

9.GD.05Gmelinite-KK4(Si8Al4O24) · 11H2O
9.GD.05Gmelinite-NaNa4(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 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.

Localities for Gmelinite-Ca

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.
(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
    • Break O'Day municipality
      • Blue Tier district
Ralph Bottrill
Canada
 
  • Nova Scotia
    • Kings Co.
      • Bay of Fundy
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, p.205
Cyprus
 
  • Larnaca District (Larnaka District; İskele District)
Prüfer, P. (2010): Mineralien der Insel Zypern. Der Aufschluss 61, 97-106. (in German)
    • Troulloi (Troulli)
Prüfer, P. (2012): Mineralien der Insel Zypern (3). Aufschluss 63, 261-269.
Germany
 
  • Rhineland-Palatinate
    • Siegerland
      • Herdorf
        • Malscheid (Mahlscheid; Mahlscheiderkopf; Mahlscheider Kopf)
Klein, E. (2011): Der Steinbruch Mahlscheid bei Herdorf im Siegerland. Mineralien Welt. 22 (3): 28-35
Hungary
 
  • Veszprém Co.
    • Balaton Uplands
      • Tapolcai Basin
        • Zalahaláp
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
 
  • 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
    • Verona Province
Martins da Pedra
      • Vestenanuova
- Mattioli, M., Cenni, M., 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, Verona, 196 pp.
    • Vicenza province
      • Marostica
        • Mt Gloso
          • Marsan
Boscardin, M., Pegoraro, S.(2000): La natrolite del vicentino. Rivista
      • Montecchio Maggiore
        • San Pietro
Neues Jahrb. Mineral., Monatsh. (1982) 145; Can. Mineral. (1997) 35, 1571
Kazakhstan
 
  • Kostanay Province (Qostanay Oblysy; Kostanai Oblast')
    • Rudny
Joan Rosell - Rosellminerals.com
Norway
 
  • Hordaland
    • Bergen
      • Ytrebygda
Berentzen, H. Chr. (2013): Gmelinitt-Ca fra Blomøy, Øygarden. Stein. 40(3),14-15
    • Øygarden
      • Blomøy
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
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
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
 
  • Oregon
    • Malheur Co.
      • Lake Owyhee State Park
Am Min 58:405-411
Mineral and/or Locality  
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