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Phillipsite-Na

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Rupe di Aci Castello, Aci Castello, Etna Volcanic Complex, Catania Province, Sicily, Italy
© Marco Barsanti

Show Phillipsite-Na Photos (8)
Formula:
(Na,K,Ca
 
0.5
,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
] · 12H
 
2
O
System:MonoclinicColour:White
Lustre:VitreousHardness:4 - 5
Name:
Named after William Phillips (1775-1828), English mineralogist and founder of the Geologial Society of London.


Zeolite Group. Phillipsite-Ca-Phillipsite-Na Series, and the Phillipsite-K-Phillipsite-Na Series.

Classification of Phillipsite-Na

IMA status:Approved
Strunz 8th edition ID:8/J.25-50
Nickel-Strunz 10th (pending) edition ID:9.GC.10

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
C : Chains of doubly-connected 4-membered rings
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Type Occurrence of Phillipsite-Na

Type Locality:Rupe di Aci Castello, Aci Castello, Etna Volcanic Complex, Catania Province, Sicily, Italy

Physical Properties of Phillipsite-Na

Lustre:Vitreous
Colour:White
Streak:White
Hardness (Mohs):4 - 5

Crystallography of Phillipsite-Na

Crystal System:Monoclinic

Optical Data of Phillipsite-Na

Type:Biaxial (+/-)
RI values: nα = 1.483 - 1.505 nβ = 1.484 - 1.511 nγ = 1.486 - 1.514
2V:Measured: 60° to 90°, Calculated: 70° to 72°
Maximum Birefringence:δ = 0.003 - 0.009

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v or r < v

Chemical Properties of Phillipsite-Na

Formula:
(Na,K,Ca
 
0.5
,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
] · 12H
 
2
O
Essential elements:Al, H, Na, O, Si
All elements listed in formula:Al, Ba, Ca, H, K, Na, O, Si

Relationship of Phillipsite-Na to other Species

Series:Forms a series with Phillipsite-K (see here)
Forms a series with Phillipsite-Ca (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
9.GC.05Amicite
K
 
2
Na
 
2
Al
 
4
Si
 
4
O
 
16
·5H
 
2
O
9.GC.05Garronite
Na
 
2
Ca
 
5
Al
 
12
Si
 
20
O
 
64
·27H
 
2
O
9.GC.05Gismondine-Ca
CaAl
 
2
Si
 
2
O
 
8
·4H
 
2
O
9.GC.05Gobbinsite
Na
 
4
(Ca,Mg,K
 
2
)Al
 
6
Si
 
10
O
 
32
·12H
 
2
O
9.GC.05Gismondine
Ca[Al
 
2
Si
 
2
O
 
8
]·4.5H
 
2
O
9.GC.10Harmotome
(Ba
 
0.5
,Ca
 
0.5
,K,Na)
 
5
[Al
 
5
Si
 
11
O
 
32
] ·12H
 
2
O
9.GC.10Phillipsite-Ca
(Ca
 
0.5
,K,Na,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
.
 
 12H2O
9.GC.10Phillipsite-K
(K,Na,Ca
 
0.5
,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
]
.
 
 12H
 
2
O
9.GC.10Flörkeite
(K
 
3
Ca
 
2
Na)[Al
 
8
Si
 
8
O
 
32
]·12H
 
2
O
9.GC.15Merlinoite
(K,Na)
 
5
(Ca,Ba)
 
2
Al
 
9
Si
 
23
O
 
64
·23H
 
2
O
9.GC.20Mazzite-Mg
K
 
2
Mg
 
2
Ca
 
1.5
Al
 
9.5
Si
 
26.5
O
 
72
·28H
 
2
O or near
9.GC.20Mazzite-Na
Na
 
4
[Al
 
4
Si
 
14
O
 
36
]
 
2
 · 30H
 
2
O
9.GC.25Perlialite
K
 
9
Na(Ca,Sr)[Al
 
2
Si
 
4
O
 
12
]
 
6
 · 15H
 
2
O
9.GC.30Boggsite
Ca
 
8
Na
 
3
(Si,Al)
 
96
O
 
192
·70H
 
2
O
9.GC.35Paulingite-Ca
(Ca,K
 
2
,Na
 
2
,Ba)
 
5
[Al
 
10
Si
 
35
O
 
90
] · 45H
 
2
O
9.GC.35Paulingite-K
(K
 
2
,Ca,Na
 
2
,Ba)
 
5
[Al
 
10
Si
 
35
O
 
90
] · 45H
 
2
O

Other Names for Phillipsite-Na

Other Languages:
German:Phillipsit-Na
Russian:Филлипсит-Na

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 Phillipsite-Na

Reference List:American Mineralogist (1972): 57: 1125-1145.

Acta Crystallographica: B30: 2426-2433.

Mineralogical Magazine (1998): 62: 553-554.

G. Diego Gatta, Piergiulio Cappelletti, Nicola Rotiroti, Carla Slebodnick, and Romano Rinaldi (2009): New insights into the crystal structure and crystal chemistry of the zeolite phillipsite. Am. Mineral. 94, 190-199.

Internet Links for Phillipsite-Na

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    Localities for Phillipsite-Na

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