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Phillipsite

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William Phillips
Colour:
White
Hardness:
4 - 4½
Name:
Named in 1825 by "Armand" Serve-Dieu Abailard Lévy in honor of William Phillips (1776-1829), British mineralogist. The mineral was long defined as a K-dominant species until the introduction of a suffix format for the dominant exchangeable cation.
Zeolite Group.

The original phillipsite mineral name now covers a range of series of minerals.

The original phillipsite material was from Acireale, Etna Volcanic Complex, Catania Province, Sicily, Italy.

See also the closely related flörkeite.

Classification of Phillipsite

77.1.3.6

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites
16.10.11

16 : Silicates Containing Aluminum and other Metals
10 : Aluminosilicates of Ca and alkalis
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Physical Properties of Phillipsite

Vitreous
Colour:
White
Streak:
White
Hardness (Mohs):
4 - 4½
Density:
2.2 g/cm3 (Measured)    2.242 g/cm3 (Calculated)

Crystallographic forms of Phillipsite

Crystal Atlas:
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Phillipsite no.1 - Goldschmidt (1913-1926)
Phillipsite no.20 - Goldschmidt (1913-1926)
Phillipsite no.41 - Goldschmidt (1913-1926)
Phillipsite no.52 - Goldschmidt (1913-1926)
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Optical Data of Phillipsite

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°
Max Birefringence:
δ = 0.003 - 0.009
Image 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

Relationship of Phillipsite to other Species

16.10.1Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
16.10.2LisetiteCaNa2Al4Si4O16
16.10.4Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
16.10.5Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
16.10.6MesoliteNa2Ca2Si9Al6O30 · 8H2O
16.10.7Faujasite
16.10.8Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
16.10.9BoggsiteCa8Na3(Si,Al)96O192 · 70H2O
16.10.10Herschelite
16.10.12Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2O
16.10.13WillhendersoniteKCa[Al3Si3O12] · 5H2O
16.10.14Barrerite(Na,K,Ca0.5)2[Al2Si7O18] · 7H2O
16.10.15Mordenite(Na2,Ca,K2)Al2Si10O24 · 7H2O
16.10.16Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2O
16.10.17Lévyne
16.10.18Clinoptilolite
16.10.19Heulandite
16.10.20GobbinsiteNa5(Si11Al5)O32 · 11H2O
16.10.21Stilbite
16.10.22Dachiardite
16.10.23OffretiteKCaMg(Si13Al5)O36 · 15H2O
16.10.24PerlialiteK9Na(Ca,Sr)[Al2Si4O12]6 · 15H2O
16.10.25Erionite
16.10.26Paulingite
16.10.27Sodium Dachiardite(Na2,Ca,K2)4-5Al8Si40O96 · 26H2O
16.10.28Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2O
16.10.29RoggianiteCa2Be(OH)2Al2Si4O13 · 2.5H2O

Other Names for Phillipsite

Name in Other Languages:

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 Phillipsite

Reference List:
Lévy, "Armand" Serve-Dieu Abailard (1825) Annals of Philosophy, v. 10, p. 362.
Köhler, F. (1836): Zur Naturgeschichte des Kreuzsteins oder ..., Annalen der Chemie und Physik, Vol. 37, pp. 560
Steinfink, H. (1962): The crystal structure of the zeolite, phillipsite. Acta Crystallogr., 15, 644-652.
Hentschel, G. (1989): Zur Vielgestaltigkeit des Phillipsit. Der Aufschluss 40, 153-164 (in German).
Gatta, G. D., Cappelletti, P. & Langella, A. (2010): Crystal-chemistry of phillipsites from the Neapolitan Yellow Tuff. European Journal of Mineralogy 22, 779-786.

Internet Links for Phillipsite

Specimens:
The following Phillipsite specimens are currently listed for sale on minfind.com.

Localities for Phillipsite

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.
Mineral and/or Locality  
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