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Gmelinite-Ca

A valid IMA mineral species

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Photos of Gmelinite-Ca (56)

Gmelinite-Ca Gallery Search Photos of Gmelinite-Ca

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Gmelinite-Ca

Cattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy

Gmelinite-Ca, etc.

Cattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy

Gmelinite-Ca

Cattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy

Gmelinite-Ca

Cattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy

Gmelinite-Ca, etc.

Cattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy

Gmelinite-Ca

Cattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy

Gmelinite-Ca

Cattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy

Gmelinite-Ca, etc.

Cattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy

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About Gmelinite-CaHide

Christian Gottlob Gmelin

Formula:

Ca₂(Si₈Al₄)O₂₄ · 11H₂O

Colour:

Colorless, white, pink

Lustre:

Vitreous

Hardness:

4½

Specific Gravity:

2.11

Crystal System:

Hexagonal

Member of:

Gmelinite Subgroup > Zeolite Group

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. The suffix indicates the dominant extra-framework cation. In 1997, the name gmelinite (without suffix) was promoted from species to series and gmelinite-Ca was defined as one of several species.

Type Locality:

ⓘ Monte Nero, San Pietro, Montecchio Maggiore, Vicenza Province, Veneto, Italy

This page provides mineralogical data about Gmelinite-Ca.

Unique IdentifiersHide

Mindat ID:

6971

Long-form identifier:

mindat:1:1:6971:3

GUID
(UUID V4):

a0b2edbc-9972-4426-ba1f-56c84029d18d

IMA Classification of Gmelinite-CaHide

IMA status:

Approved

Type description reference:

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

Classification of Gmelinite-CaHide

Strunz-mindat (2024):

9.GD.05

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

Mineral SymbolsHide

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.

Symbol	Source	Reference
Gme-Ca	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-CaHide

Lustre:

Vitreous

Transparency:

Transparent, Translucent

Colour:

Colorless, white, pink

Streak:

White

Hardness:

4½ on Mohs scale

Tenacity:

Brittle

Fracture:

Irregular/Uneven

Density:

2.11(1) g/cm³ (Measured) 2.095 g/cm³ (Calculated)

Optical Data of Gmelinite-CaHide

Type:

Uniaxial (+/-)

RI values:

n_ω = 1.485(9) n_ε = 1.477(3)

Max Birefringence:

δ = 0.008

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Moderate

Chemistry of Gmelinite-CaHide

Mindat Formula:

Ca₂(Si₈Al₄)O₂₄ · 11H₂O

Elements listed:

Al, Ca, H, O, Si - search for minerals with similar chemistry

Crystallography of Gmelinite-CaHide

Crystal System:

Hexagonal

Class (H-M):

6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal

Space Group:

P6₃/mmc

Cell Parameters:

a = 13.800(5) Å, c = 9.964(5) Å

Ratio:

a:c = 1 : 0.722

Unit Cell V:

1,643.32 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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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)
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

data_global
_chemical_name_mineral 'Gmelinite-Ca'
loop_
_publ_author_name
'Sacerdoti M'
'Passaglia E'
'Carnevali R'
_journal_name_full 'Zeolites'
_journal_volume 15 
_journal_year 1995
_journal_page_first 276
_journal_page_last 281
_publ_section_title
;
 Structural refinements of Na-, K-, and Ca-exchanged gmelinites
 Note: sample 3Ca, natural sample is cation exchanged with Ca
;
_database_code_amcsd 0015870
_chemical_compound_source 'San Giorgio perlena, Fara Vincentina, Vicenza, Italy'
_chemical_formula_sum 'Ca1.25 (Si4.179 Al1.821) O17.94 H5.88'
_cell_length_a 13.807
_cell_length_b 13.807
_cell_length_c 9.792
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1616.593
_exptl_crystal_density_diffrn      2.094
_symmetry_space_group_name_H-M 'P 63/m m c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x,x-y,1/2-z'
  '-x+y,-x,1/2-z'
  'x-y,x,1/2+z'
  '-y,-x,z'
  'y,x,-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x+y,y,1/2-z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  'x,x-y,z'
  '-x,-x+y,-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  '-y,-x,1/2-z'
  '-y,x-y,1/2-z'
  'y,-x+y,1/2+z'
  '-x+y,y,z'
  'x-y,-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Ca1   0.33330   0.66670   0.09000   0.53000   0.03900
Ca2   0.10570   0.21100   0.05100   0.12000   0.08000
Si   0.44280   0.10850   0.08820   0.69650   0.01340
Al   0.44280   0.10850   0.08820   0.30350   0.01340
O1   0.42500   0.21260   0.04300   1.00000   0.04100
O2   0.85400   0.42680   0.04500   1.00000   0.03500
O3   0.42110   0.07950   0.25000   1.00000   0.03500
O4   0.35470   0.00000   0.00000   1.00000   0.03200
Wat1   0.18100   0.55600   0.25000   0.50000   0.08000
Wat2   0.16230   0.32500   0.25000   0.40000   0.08000
Wat6   0.00000   0.00000   0.04000   0.24000   0.10000

X-Ray Powder DiffractionHide

Image Loading

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

Geological EnvironmentHide

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)
26 : Hadean detrital minerals
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Type Occurrence of Gmelinite-CaHide

Type Locality:

ⓘ Monte Nero, San Pietro, Montecchio Maggiore, Vicenza Province, Veneto, Italy

Reference:

Coombs, D. S., Alberti, A., Armbruster, T., Artioli, G., Colella, C., Galli, E., Grice, J. D., Liebau, F., Mandarino, J. A., Minato, H., Nickel, E. H., Passaglia, E., Peacor, D. R., Quartieri, S., Rinaldi, R., Ross. M., Sheppard, R. A., Tillmanns, E., Vezzalini, G. (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, 1571-1606

Other Language Names for Gmelinite-CaHide

Russian:Гмелинит-Ca

Simplified Chinese:钙菱沸石

Relationship of Gmelinite-Ca to other SpeciesHide

Member of:

Gmelinite Subgroup > Zeolite Group

Other Members of this group:

Gmelinite-K	K₄(Si₈Al₄O₂₄) · 11H₂O	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
Gmelinite-Na	Na₄(Si₈Al₄O₂₄] · 11H₂O	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc

Common AssociatesHide

Associated Minerals Based on Photo Data:

12 photos of Gmelinite-Ca associated with Calcite	CaCO₃
9 photos of Gmelinite-Ca associated with Chabazite-Ca	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
8 photos of Gmelinite-Ca associated with Chabazite
8 photos of Gmelinite-Ca associated with Analcime	Na(AlSi₂O₆) · H₂O
7 photos of Gmelinite-Ca associated with Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
3 photos of Gmelinite-Ca associated with Phillipsite Subgroup
3 photos of Gmelinite-Ca associated with Harmotome	Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O
2 photos of Gmelinite-Ca associated with Pyrite	FeS₂
1 photo of Gmelinite-Ca associated with Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
1 photo of Gmelinite-Ca associated with Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

Related Minerals - Strunz-mindat Grouping Hide

9.GD.05	Gmelinite-K	K₄(Si₈Al₄O₂₄) · 11H₂O	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
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. 1 : P1
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	Trig. 3m : R3m
9.GD.10	Chabazite-Sr	Sr₂[Al₂Si₄O₁₂]₂ · 12H₂O	Trig. 3m (3 2/m) : R3m
9.GD.10	Chabazite-Mg	(Mg_0.7K_0.5Ca_0.5Na_0.1)[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. 3m (3 2/m) : R3m
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. 6 m2 : P6₂m
9.GD.30	Faujasite-Ca	(Ca,Na₂,Mg)_3.5[Al₇Si₁₇O₄₈] · 32H₂O	Iso. m3m (4/m 3 2/m) : Fd3m
9.GD.30	Faujasite-Mg	(Mg,Na₂,Ca)_3.5[Al₇Si₁₇O₄₈] · 32H₂O	Iso. m3m (4/m 3 2/m) : Fd3m
9.GD.30	Faujasite-Na	(Na₂,Ca,Mg)_3.5[Al₇Si₁₇O₄₈] · 32H₂O	Iso. m3m (4/m 3 2/m) : Fd3m
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-K	K₄(Si₂₀Al₄O₄₈) · 13H₂O	Mon.
9.GD.40	Dachiardite-Ca	(Ca,Na₂,K₂)₅Al₁₀Si₃₈O₉₆ · 25H₂O	Mon. 2/m : B2/m
9.GD.40	Dachiardite-Na	(Na₂,Ca,K₂)₅Al₁₀Si₃₈O₉₆ · 25H₂O	Mon. 2/m : B2/m
9.GD.45	Epistilbite	CaAl₂Si₆O₁₆ · 5H₂O	Mon.
9.GD.50	Ferrierite-K	(K,Na)₅(Si₃₁Al₅)O₇₂ · 18H₂O	Orth. mmm (2/m 2/m 2/m) : Immm
9.GD.50	Ferrierite-Mg	[Mg₂(K,Na)₂Ca_0.5](Si₂₉Al₇)O₇₂ · 18H₂O	Orth. mmm (2/m 2/m 2/m) : Pnnm
9.GD.50	Ferrierite-Na	(Na,K)₅(Si₃₁Al₅)O₇₂ · 18H₂O	Mon. 2/m
9.GD.50	Ferrierite-NH4	(NH₄,Mg_0.5)₅(Al₅Si₃₁O₇₂) · 22H₂O	Orth. mmm (2/m 2/m 2/m) : Immm
9.GD.55	Bikitaite	LiAlSi₂O₆ · H₂O	Tric. 1 : P1

Other InformationHide

Electrical:

Piezoelectric

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-CaHide

mindat.org URL:

https://www.mindat.org/min-6971.html
Please feel free to link to this page.

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for Gmelinite-CaHide

Reference List:

Marsh, Othniel Charles (1867) Contributions to the Mineralogy of Nova Scotia, No. 1 - Ledererite identical with Gmelinite. American Journal of Science and Arts, S. 2 Vol. 44. 362-367(wet chemical analysis)

Passaglia, E., Pongiluppi, D., Vezzalini, G. (1978) The crystal chemistry of gmelinites. Neues Jahrbuch für Mineralogie, Monatshefte, 1978. 310-324

Fischer, K. (1982) Untersuchung der kristallstruktur von gmelinit. Neues Jahrbuch für Mineralogie, Monatshefte, 1982. 1-13

Galli, E., Zanazzi, P. F. (1982) Gmelinite: structural refinements of sodium-rich and calcium-rich natural crystals. Neues Jahrbuch für Mineralogie, Monatshefte, 1982. 145-155

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

(2023) Gmelinite-Ca. Handbook of Mineralogy. Mineralogical Society of America

Localities for Gmelinite-CaHide

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 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). ~~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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Australia
Tasmania Break O'Day municipality Blue Tier district ⓘ Little Plains Quarry	Ralph Bottrill

Canada
Nova Scotia Kings Co. ⓘ Amethyst Cove (Captain Kidd's Cove)	Marsh (1867)
ⓘ Cape Blomidon	Tschernich (1992)

Cyprus
Larnaca District ⓘ Avhellero (Avdellero)	Prüfer (2010)
Troulloi (Troulli) ⓘ Basalt quarry	Prüfer (2012)

Germany
Rhineland-Palatinate Altenkirchen Daaden-Herdorf Herdorf Malscheid (Mahlscheid; Mahlscheiderkopf; Mahlscheider Kopf) ⓘ Basalt quarry	Klein (2011)

Hungary
Veszprém County Tapolca District Zalahaláp ⓘ Halápi Hill (Haláp Hill)	Kónya-MÁFI +1 other reference

Italy
Sicily Metropolitan City of Catania ⓘ Palagonia	Sicurella et al. (2010)
ⓘ Mount Caliella	Sicurella et al. (2010)
Veneto Verona Province Montecchia di Crosara ⓘ Gambaretti di Sotto	Mattioli et al. (2008)
ⓘ San Giovanni Ilarione	Martins da Pedra
ⓘ Cattignano quarry	Mattioli et al. (2008)
Vicenza Province Arzignano ⓘ Contrada Segani	Franco Luca Bonino's collection
Marostica Marsan ⓘ Monte Gloso Quarry (Vaccari S.p.A. Quarry)	Luppi et al. (2007) +2 other references
Montecchio Maggiore San Pietro ⓘ Monte Nero (TL)	Neues Jahrb. Mineral. (1982) +1 other reference

Kazakhstan
Kostanay Region Rudny ⓘ Sarbai Deposit
ⓘ Sokolovskoe Iron Mine	Joan Rosell - rosellminerals.com

Norway
Vestland Bergen Ytrebygda ⓘ Kokstad	Berntzen (2013)
Øygarden Blomøy ⓘ Unnamed Quarry	Dalen (2011)
ⓘ Toftøyna	Berntzen (2013)

Russia
Murmansk Oblast ⓘ Lovozero Massif	...
Lovozersky District ⓘ Alluaiv Mountain	Yakovenchuk et al. (2010)
ⓘ Malyi Punkaruaiv Mountain	Yakovenchuk et al. (2011)

UK
Northern Ireland Co. Antrim Glenarm ⓘ Little Deerpark Quarry	S. Moreton

USA
Oregon Malheur County Lake Owyhee State Park ⓘ Owyhee Dam	Staples et al. (1973)

Gmelinite-Ca

About Gmelinite-CaHide

Unique IdentifiersHide

IMA Classification of Gmelinite-CaHide

Classification of Gmelinite-CaHide

Mineral SymbolsHide

Physical Properties of Gmelinite-CaHide

Optical Data of Gmelinite-CaHide

Chemistry of Gmelinite-CaHide

Crystallography of Gmelinite-CaHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of Gmelinite-CaHide

Other Language Names for Gmelinite-CaHide

Relationship of Gmelinite-Ca to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for Gmelinite-CaHide

References for Gmelinite-CaHide

Localities for Gmelinite-CaHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide