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Zeophyllite

Big Photo

Schellkopf Mt., Brenk, Niederzissen, Eifel Mts, Rhineland-Palatinate, Germany
© Saul Krotki 2004

Show Zeophyllite Photos (6)
Formula:
Ca
 
4
Si
 
3
O
 
8
(OH,F)
 
4
·2H
 
2
O
System:TriclinicColour:White
Hardness:3
Name:From Greek "zeon", to boil, plus "phyllon", a leaf, alluding to its occurrence in hemispheral foliated forms and intumescence on heating.
This page provides mineralogical data about Zeophyllite.

Classification of Zeophyllite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/H.34-50
Nickel-Strunz 10th (pending) edition ID:9.EE.70

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
Dana 7th edition ID:73.1.4.1
Dana 8th edition ID:73.1.4.1

73 : PHYLLOSILICATES Condensed Tetrahedral Sheets
1 : Condensed Tetrahedral Sheets with double layers
Hey's CIM Ref.:17.1.17

17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
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Type Occurrence of Zeophyllite

Type Locality:Velký Březno (Brezno nad Labem; Großpriesen), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic
Year of Discovery:1902

Physical Properties of Zeophyllite

Lustre:Pearly
Diaphaneity (Transparency):Translucent
Colour:White
Hardness (Mohs):3

Crystallography of Zeophyllite

Crystal System:Triclinic
Cell Parameters:a = 9.34Å, b = 9.34Å, c = 13.2Å
α = 90°, β = 110°, γ = 120°
Ratio:a:b:c = 1 : 1 : 1.413
Unit Cell Volume:V 916.17 ų (Calculated from Unit Cell)
Morphology:Pseudo-Hexagonal. As platy crystals in radiating spherical aggregates.
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 Zeophyllite

Type:Uniaxial (-)
RI values: nω = 1.565 - 1.577 nε = 1.560 - 1.569
Maximum Birefringence:δ = 0.005 - 0.008

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low

Chemical Properties of Zeophyllite

Formula:
Ca
 
4
Si
 
3
O
 
8
(OH,F)
 
4
·2H
 
2
O
Essential elements:Ca, H, O, Si
All elements listed in formula:Ca, F, H, O, Si
Common Impurities:Al,Fe,Mg,Na,K

Relationship of Zeophyllite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.EE.05Bementite
Mn
 
5
Si
 
4
O
 
10
(OH)
 
6
9.EE.10Brokenhillite
9.EE.10Pyrosmalite-(Fe)
(Fe,Mn)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Friedelite
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Pyrosmalite-(Mn)
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Mcgillite
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH)
 
8
Cl
 
2
9.EE.15Nelenite
(Mn,Fe)
 
16
Si
 
12
As
 
3
O
 
36
(OH)
 
17
9.EE.15Schallerite
(Mn,Fe)
 
16
Si
 
12
As
 
3
O
 
36
(OH)
 
17
9.EE.20Palygorskite
(Mg,Al)
 
5
(Si,Al)
 
8
O
 
20
(OH)
 
2
·8H
 
2
O
9.EE.20Tuperssuatsiaite
Na
 
2
Fe
 
3
Si
 
8
O
 
20
(OH)
 
2
·4H
 
2
O
9.EE.20Yofortierite
Mn
 
5
Si
 
8
O
 
20
(OH)
 
2
·8-9H
 
2
O
9.EE.25Falcondoite
(Ni,Mg)
 
4
Si
 
6
O
 
15
(OH)
 
2
·6H
 
2
O
9.EE.25Loughlinite
Na
 
2
Mg
 
3
Si
 
6
O
 
16
·8H
 
2
O
9.EE.25Sepiolite
Mg
 
4
Si
 
6
O
 
15
(OH)
 
2
·6H
 
2
O
9.EE.25Kalifersite
(K,Na)
 
5
Fe
3+
7
Si
 
20
O
 
50
(OH)
 
6
·12H
 
2
O
9.EE.30Gyrolite
Ca
 
4
(Si
 
6
O
 
15
)(OH)
 
2
·3H
 
2
O
9.EE.30Orlymanite
Ca
 
4
Mn
 
3
Si
 
8
O
 
20
(OH)
 
6
·2H
 
2
O
9.EE.30Tungusite
Ca
 
4
Fe
 
2
Si
 
6
O
 
15
(OH)
 
6
9.EE.35Fedorite
KNa
 
4
Ca
 
4
[HSi
 
4
O
 
10
]
 
4
 · 6H
 
2
O
9.EE.35Minehillite
(K,Na)
 
2-3
Ca
 
28
Zn
 
4
Al
 
4
Si
 
40
O
 
112
(OH)
 
16
9.EE.35Reyerite
(Na,K)
 
2
Ca
 
14
(Si,Al)
 
24
O
 
58
(OH)
 
8
·6H
 
2
O
9.EE.35Truscottite
(Ca,Mn)
 
14
Si
 
24
O
 
58
(OH)
 
8
·2H
 
2
O
9.EE.35Martinite
(Na,Ca)
 
11
Ca
 
4
(Si,S,B)
 
14
B
 
2
O
 
40
F
 
2
·4H
 
2
O
9.EE.35Lalondeite
(Na,Ca)
 
6
(Ca,Na)
 
3
Si
 
16
O
 
38
(F,OH)
 
2
·3H
 
2
O
9.EE.40Natrosilite
Na
 
2
Si
 
2
O
 
5
9.EE.45Makatite
Na
 
2
Si
 
4
O
 
8
(OH)
 
2
·4H
 
2
O
9.EE.50Varennesite
Na
 
8
Mn
 
2
Si
 
10
O
 
25
(OH,Cl)
 
2
·12H
 
2
O
9.EE.55Raite
(Na,Ca)
 
4
(Mn,Ti,Fe)
 
3
Si
 
8
O
 
16
(OH)
 
12
·5H
 
2
O
9.EE.60Intersilite
Na
 
6
Mn
2+
 
Ti[Si
 
10
O
 
24
(OH)](OH)
 
3
·4H
 
2
O
9.EE.65Shafranovskite
(Na,K)
 
6
(Mn,Fe)
 
3
Si
 
9
O
 
24
·6H
 
2
O
9.EE.65Zakharovite
Na
 
4
Mn
 
5
Si
 
10
O
 
24
(OH)
 
6
·6H
 
2
O
Related Minerals - Hey's Index Grouping:
17.1.1Hectorite
Na
 
0.3
(Mg,Li)
 
3
Si
 
4
O
 
10
(F,OH)
 
2
17.1.3Agrellite
NaCa
 
2
[F|Si
 
4
O
 
10
]
17.1.4Apophyllite-(NaF)
NaCa
 
4
[F|Si
 
8
O
 
20
] · 8H
 
2
O
17.1.5Apophyllite-(KF)
KCa
 
4
[(F,OH)|Si
 
8
O
 
20
] · 8H
 
2
O
17.1.6Apophyllite-(KOH)
KCa
 
4
[(OH,F)|Si
 
8
O
 
20
] · 8H
 
2
O
17.1.7Hsianghualite
Ca
 
3
Li
 
2
Be
 
3
[F
 
2
|(SiO
 
4
)
 
3
]
17.1.8Leucophanite
(Ca,Na)
 
2
(Be,Al)[Si
 
2
O
 
6
(F,OH)]
17.1.9Norbergite
Mg
 
3
[(F,OH)
 
2
|SiO
 
4
]
17.1.10Chondrodite
(Mg,Fe
2+
 
)
 
5
[(F,OH)
 
2
|(SiO
 
4
)
 
2
]
17.1.11Humite
(Mg,Fe
2+
 
)
 
7
[(F,OH)
 
2
|(SiO
 
4
)
 
3
]
17.1.12Clinohumite
(Mg,Fe
2+
 
)
 
9
[(F,OH)
 
2
|(SiO
 
4
)
 
4
]
17.1.13Canasite
Ca
 
5
Na
 
4
K
 
2
(Si
 
12
O
 
30
(OH,F)
 
4
17.1.14Charoite
(K,Na)
 
5
(Ca,Ba,Sr)
 
8
(Si
 
6
O
 
15
)
 
2
(Si
 
6
O
 
16
)(OH,F)·H
 
2
O
17.1.15Cuspidine
Ca
 
4
[(F,OH)
 
2
|Si
 
2
O
 
7
]
17.1.16Bultfonteinite
Ca
 
2
[F|HSiO
 
4
] · H
 
2
O
17.1.18Rowlandite-(Y)
(Y,Fe
3+
 
,Ce)
 
3
[O|(F,OH)|Si
 
2
O
 
7
]
17.1.19Yuksporite
(K,Ba)NaCa
 
2
(Si,Ti)
 
4
O
 
11
(F,OH)·H
 
2
O
17.1.20Yftisite-(Y)
(Y,Dy,Er)
 
4
(Ti,Sn)O(SiO
 
4
)
 
2
(F,OH)
 
6
17.1.21Mosandrite
(Ca,Na,Ce)
 
12
(Ti,Zr)
 
2
[F
 
4
|(OH)
 
6
|SiO
 
4
|(Si
 
2
O
 
7
)
 
3
]
17.1.22Hiortdahlite
(Ca,Na)
 
3
(Zr,Ti)Si
 
2
O
 
7
(O,OH,F)
 
2
17.1.23Burpalite
Na
 
2
CaZr[F
 
2
|Si
 
2
O
 
7
]
17.1.24Seidozerite
Na
 
8
Zr
 
3
Ti
 
3
Mn
2+
2
[O|F|Si
 
2
O
 
7
]
 
4
17.1.25Thorosteenstrupine
CaMnThSi
 
4
O
 
11
(OH)F·6H
 
2
O
17.1.26Zircophyllite
(K,Na)
 
3
(Mn,Fe
2+
 
)
 
7
(Zr,Ti)
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
17.1.27Jinshajiangite
(Na,Ca)(Ba,K)(Fe,Mn)
 
4
Ti
 
2
Si
 
4
O
 
16
(F,O,OH)
 
2-3
17.1.28Rosenbuschite
(Ca,Na)
 
3
(Zr,Ti)[O|F|Si
 
2
O
 
7
]
17.1.29Narsarsukite
Na
 
2
(Ti,Fe)Si
 
4
(O,F)
 
11
17.1.30Sonolite
Mn
2+
9
[(OH,F)
 
2
|(SiO
 
4
)
 
4
]

Other Names for Zeophyllite

Synonyms:
KnolliteRadiophyllite
German names:
KnollitRadiophyllitZeophyllit
Russian names:
Цеофиллит
Spanish names:
KnollitaRadiophyllitaZeophyllita

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 Zeophyllite

Reference List:Mineralogical Magazine (1958): 31: 726-735.

Acta Crystallographica: 28, IV: 2726-2732.

Mineralogy and Petrology (1997): 61: 199.

Internet Links for Zeophyllite

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  • Look for Zeophyllite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Zeophyllite in the Natural History Museum (London) online catalogue
  • Zeophyllite details from Handbook of Mineralogy (PDF)
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    Localities for Zeophyllite

    Hide Locality List
    The 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.
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    (TL) indicates type locality. ? 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.
    Canada
     
    • Québec
      • Rouville Co.
        • Mont Saint-Hilaire
    		Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Ústí Region
        • Děčín (Tetschen)
    		No reference listed
    No reference listed
    Germany
     
    • North Rhine-Westphalia
      • Siebengebirge
        • Königswinter
    		Brauns, R., (1922): Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart
    • Rhineland-Palatinate
      • Eifel Mts
        • Mayen
          • Ettringen
    		[Blass, G., Graf, H.W., Neufunde von bekannten Fundorten (VI), Mineralien-Welt 3/6,32-35, 1992] [A. Wittern: Mineralfundorte in Deutschland, Schweizerbart (Stuttgart), 2001]
        • Niederzissen
          • Brenk
    		Brauns, A., Brauns, R., Ein Kalkzeolith aus der Gruppe der Glimmerzeolithe vom Schellkopf bei Brenk, Cbl. Mineral. Geol. Paläont. 549-551, 1924
    Italy
     
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
          • Monte Somma
    		Passaglia, E., Porcelli. C. (1983): Zeophyllite from Monte Somma, Vesuvius, Italy, Mineralogical Magazine, Vol. 47, 397-400
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Okayama Prefecture
          • Takahashi
    		Matsueda, H. (1983) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #3, 259-292.
      • Tohoku Region
        • Fukushima Prefecture
    		Matsuyama, F. (2001)
    Russia
     
    • Northern Caucasus Region
      • Kabardino-Balkarian Republic
        • Verkhnechegemskiy volcanic structure
    		A. E. Zadov data
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
            • Yukspor Mt.
    		[World of Stones 95:5-6, p64]
    Sweden
     
    • Skåne
      • Hässleholm
        • Häglinge
    USA
     
    • Michigan
      • Ontonagon Co.
        • Mass City
    		Mineralogy of Michigan (2004) Heinrich & Robinson
    • Texas
      • Culberson Co.
        • Apache Peak area
    		Am Min 51:1766-1774
    Mineral and/or Locality
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