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Chabazite-Ca

Big Photo

Upper New Street Quarry (Burger's Quarry), Paterson, Passaic Co., New Jersey, USA
© 2001 John H. Betts

Show Chabazite-Ca Photos (145)
Formula:
(Ca,K
 
2
,Na
 
2
)
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
System:TriclinicColour:Colourless, white, ...
Hardness:4 - 5
Name:Fronm the Greek chabazois, an ancient name of a stone and its chemical composition.


The calcium-dominant member of the Chabazite series of the Zeolite Group.

Classification of Chabazite-Ca

IMA status:Approved
Strunz 8th edition ID:8/J.26-30
Nickel-Strunz 10th (pending) edition ID:9.GD.10

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites
Dana 8th edition ID:77.1.2.1

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites
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Type Occurrence of Chabazite-Ca

Type Locality:Colle del Lares, San Nicolò Valley, Buffaure Group, Fassa Valley, Trento Province, Trentino-Alto Adige, Italy

Occurrences of Chabazite-Ca

Geological Setting:In vugs in volcanic rocks, hydrothermal veins, in altered bedded tuff deposits from the alteration of glass.

Physical Properties of Chabazite-Ca

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colourless, white, yellow, pink, red
Streak:White
Hardness (Mohs):4 - 5
Tenacity:Brittle
Cleavage:Distinct/Good
Distinct on {1011}
Fracture:Irregular/Uneven
Density (measured):2.05 - 2.2 g/cm3
Density (calculated):2.035 g/cm3

Crystallography of Chabazite-Ca

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 9.425Å, b = 93.42Å, c = 9.42Å
α = 94.25°, β = 94.2°, γ = 94.25°
Ratio:a:b:c = 0.101 : 1 : 0.101
Unit Cell Volume:V 8,222.71 ų (Calculated from Unit Cell)
Z:2
Morphology:pseudorhombohedral crystals, tabular
Twinning:About [0001], interpenetrant, simplw and repeated, common, contact on {1011}
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data: Peaks:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Chabazite-Ca

Type:Biaxial (+/-)
RI values: nα = 1.478 - 1.487 nβ = 1.480 - 1.490 nγ = 1.480 - 1.493
Maximum Birefringence:δ = 0.002 - 0.006

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:none
Comments:Or uniaxial, commonly shows birefringent panelling in six sections.

Chemical Properties of Chabazite-Ca

Formula:
(Ca,K
 
2
,Na
 
2
)
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
Essential elements:Al, Ca, H, O, Si
All elements listed in formula:Al, Ca, H, K, Na, O, Si

Relationship of Chabazite-Ca to other Species

Member of Group:
Chabazite-Levyne Subgroup:
Related Minerals - Nickel-Strunz Grouping):

- +
9.GD.05Gmelinite-Ca
(Ca,Na
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
9.GD.05Gmelinite-K
(K
 
2
,Na
 
2
,Ca)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
9.GD.05Gmelinite-Na
(Na
 
2
,Ca)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
9.GD.10Willhendersonite
KCa[Al
 
3
Si
 
3
O
 
12
] · 5H
 
2
O
9.GD.10Chabazite-K
(K
 
2
,Ca,Na
 
2
,Sr,Mg)
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
9.GD.10Chabazite-Na
(Na
 
2
,K
 
2
,Ca,Sr,Mg)
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
9.GD.10Chabazite-Sr
Sr
 
2
[Al
 
2
Si
 
4
O
 
12
]
 
2
 · 12H
 
2
O
9.GD.15Lévyne-Ca
(Ca,Na
 
2
,K
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
9.GD.15Lévyne-Na
(Na
 
2
,Ca,K
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 6H
 
2
O
9.GD.20Bellbergite
(K,Ba,Sr)
 
2
Sr
 
2
Ca
 
2
(Ca,Na)
 
4
[Al
 
3
Si
 
3
O
 
12
]
 
6
 · 30H
 
2
O
9.GD.20Erionite-Ca
(Ca,K
 
2
,Na
 
2
)
 
2
[Al
 
4
Si
 
14
O
 
36
] · 15H
 
2
O
9.GD.20Erionite-K
(K
 
2
,Ca,Na
 
2
)
 
2
[Al
 
4
Si
 
14
O
 
36
] · 15H
 
2
O
9.GD.20Erionite-Na
(Na
 
2
,K
 
2
,Ca)
 
2
[Al
 
4
Si
 
14
O
 
36
] · 15H
 
2
O
9.GD.25Offretite
KCaMgAl
 
5
Si
 
13
O
 
36
·16H
 
2
O or near
9.GD.25Wenkite
(Ba,K)
 
4
(Ca,Na)
 
6
[(SO
 
4
)
 
3
|(Si,Al)
 
20
O
 
39
(OH)
 
2
] · 0.5H
 
2
O
9.GD.30Faujasite-Ca
(Ca,Na
 
2
,Mg)
 
3.5
[Al
 
7
Si
 
17
O
 
48
] · 32H
 
2
O
9.GD.30Faujasite-Mg
(Mg,Na
 
2
,Ca)
 
3.5
[Al
 
7
Si
 
17
O
 
48
] · 32H
 
2
O
9.GD.30Faujasite-Na
(Na
 
2
,Ca,Mg)
 
3.5
[Al
 
7
Si
 
17
O
 
48
] · 32H
 
2
O
9.GD.35Maricopaite
Pb
 
7
Ca
 
2
(Si,Al)
 
48
O
 
100
·32H
 
2
O
9.GD.35Mordenite
(Na
 
2
,Ca,K
 
2
)Al
 
2
Si
 
10
O
 
24
·7H
 
2
O
9.GD.40Dachiardite-Ca
(Ca,Na
 
2
,K
 
2
)
 
5
Al
 
10
Si
 
38
O
 
96
·25H
 
2
O
9.GD.40Dachiardite-Na
(Na
 
2
,Ca,K
 
2
)
 
5
Al
 
10
Si
 
38
O
 
96
·25H
 
2
O
9.GD.45Epistilbite
CaAl
 
2
Si
 
6
O
 
16
·5H
 
2
O
9.GD.50Ferrierite-K
(K
 
2
,Na
 
2
,Mg,Ca)
 
3-5
Mg[Al
 
5-7
Si
 
27.5-31
O
 
72
]·18H
 
2
O
9.GD.50Ferrierite-Mg
(Mg,Na
 
2
,K
 
2
,Ca)
 
3-5
Mg[Al
 
5-7
Si
 
27.5-31
O
 
72
]·18H
 
2
O
9.GD.50Ferrierite-Na
(Na
 
2
,K
 
2
,Mg,Ca)
 
3-5
Mg[Al
 
5-7
Si
 
27.5-31
O
 
72
]·18H
 
2
O
9.GD.55Bikitaite
LiAlSi
 
2
O
 
6
·H
 
2
O

Other Names for Chabazite-Ca

Synonyms:
Chabasite-Ca
Other Languages:
German:Chabasit-Ca
Russian:Шабазит-Ca

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Chabazite-Ca

Reference List:Bosc d’Antic, L.-A.-G. (1792): Mémoire sur la chabazie. Journal d’Histoire Naturelle, 2, 181-184.

Wiser, D.F. (1842): Glimmer, Stilbit, Diopsid, Cabazit, etc. Neues Jarhbuch für Mineralogie, Geognosie, Geologie und Petrefakten-Kunde, 1842, 217-226.

Smith, J. (1962): Crystal structures with a chabazite framework. I. Dehydrated Ca-chabazite. Acta Crystallographica, 15, 835-845.

Smith, J., Rinaldi, F., Glasser, L.S.D. (1963): Crystal structures with a chabazite framework. II. Hydrated Ca-chabazite at room temperature. Acta Crystallographica, 16, 45-53.

Passaglia, E. (1970): The crystal chemistry of chabazites. American Mineralogist, 55, 1278-1301.

Neues Jahrbuch für Mineralogie, Monatshefte (1983): 461-480.

Neuhoff, P.S., J.F. Stebbins, & D.K. Bird (2003): Si-Al disorder and solid solutions in analcime, chabazite, and wairakite. American Mineralogist, 88, 410-423.

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