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Ca13Si10O28(OH)2F8 · 6H2O
Crystal System:
Named after the Greek "ζέω" (zeo), 'to boil', and "φύλλον" (phyllos), 'leaf', alluding to its occurrence in hemispheral foliated forms and intumescence (swelling) on heating.
This page provides mineralogical data about Zeophyllite.

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Classification of ZeophylliteHide

Approved, 'Grandfathered' (first described prior to 1959)

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

73 : PHYLLOSILICATES Condensed Tetrahedral Sheets
1 : Condensed Tetrahedral Sheets with double layers

17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)

Physical Properties of ZeophylliteHide


Optical Data of ZeophylliteHide

Uniaxial (-)
RI values:
nω = 1.565 - 1.577 nε = 1.560 - 1.569
Max Birefringence:
δ = 0.005 - 0.008
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of ZeophylliteHide

Ca13Si10O28(OH)2F8 · 6H2O
Common Impurities:

Crystallography of ZeophylliteHide

Crystal System:
Class (H-M):
3 - Rhombohedral
Space Group:
Cell Parameters:
a = 9.36 Å, b = 9.36 Å, c = 34.48 Å
a:b:c = 1 : 1 : 3.684
Unit Cell V:
2,616.07 ų (Calculated from Unit Cell)
(Pseudo-?)hexagonal. As platy crystals in radiating spherical aggregates.
Chalmers et al. (1956) give a pseudhexagonal cell with 9.34, 9.34, 13.2 Å, 90, 110, 120°.

X-Ray Powder DiffractionHide

Image Loading

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

Type Occurrence of ZeophylliteHide

Synonyms of ZeophylliteHide

Other Language Names for ZeophylliteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Natrolite10 photos of Zeophyllite associated with Natrolite on
Apophyllite9 photos of Zeophyllite associated with Apophyllite on
Phillipsite8 photos of Zeophyllite associated with Phillipsite on
Analcime6 photos of Zeophyllite associated with Analcime on
Calcite4 photos of Zeophyllite associated with Calcite on
Tobermorite2 photos of Zeophyllite associated with Tobermorite on
Brenkite1 photo of Zeophyllite associated with Brenkite on

Related Minerals - Nickel-Strunz GroupingHide

9.EE.10BrokenhilliteMn8Si6O15(OH)10Hex. 6mm : P63mc
9.EE.10Pyrosmalite-(Fe)Fe2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
9.EE.15SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
9.EE.20Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2OMon. 2/m : B2/m
9.EE.20TuperssuatsiaiteNa2Fe3Si8O20(OH)2 · 4H2OMon. 2/m : B2/m
9.EE.20YofortieriteMn5Si8O20(OH)2 · 8-9H2OMon. 2/m : B2/m
9.EE.20WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O Mon. 2/m : B2/m
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2OOrth.
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2OOrth.
9.EE.25SepioliteMg4(Si6O15)(OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.EE.25Kalifersite(K,Na)5Fe3+7Si20O50(OH)6 · 12H2OTric.
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric.
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
9.EE.35Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2OTrig.
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2OMon. 2/m : P21/b
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2OOrth.
9.EE.55RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2OMon.
9.EE.65Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2OTrig.
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig.
9.EE.80Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1
9.EE.80Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2·4H2OTric. 1 : P1
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2·3H2OTric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.1.4Fluorapophyllite-(Na)NaCa4(Si8O20)F · 8H2OOrth.
17.1.5Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mnc
17.1.6Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2OTet.
17.1.8LeucophaniteNaCaBeSi2O6FOrth. 2 2 2 : P21 21 21
17.1.9NorbergiteMg3(SiO4)(F,OH)2Orth. mmm (2/m 2/m 2/m)
17.1.10Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2Mon. 2/m : P21/b
17.1.11Humite(Mg,Fe2+)7(SiO4)3(F,OH)2Orth. mmm (2/m 2/m 2/m)
17.1.12ClinohumiteMg9(SiO4)4F2Mon. 2/m : P21/b
17.1.14Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2OMon. 2/m : P21/m
17.1.15CuspidineCa4(Si2O7)(F,OH)2Mon. 2/m : P21/b
17.1.16BultfonteiniteCa2(HSiO4)F · H2OTric.
17.1.18Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)Tric.
17.1.21Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.50.5]Ti(Si2O7)2(OH)2(H2O)2Mon. 2/m : P21/b
17.1.22Hiortdahlite(Na,Ca)2Ca4Zr(Mn,Ti,Fe)(Si2O7)2(F,O)4 Tric.
17.1.25Thorosteenstrupine(Ca,Th,Mn)3Si4O11F · 6H2O
17.1.27JinshajiangiteBaNaFe2+4Ti2(Si2O7)2O2(OH)2FMon. 2/m
17.1.28RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6Tric. 1 : P1

Other InformationHide

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 ZeophylliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mineralogical Magazine (1958): 31: 726-735.
Acta Crystallographica: 28, IV: 2726-2732.
Mikenda, W.; Pertlik, F.; Povondra, P.; Ulrych, J. (1997) On zeophyllite from Radejcin, Ceske stredohori Mountains. X-ray and IR investigations. Mineralogy and Petrology 61, 199-209. [crystal structure]

Internet Links for ZeophylliteHide

Localities for ZeophylliteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Styria
    • Feldbach
      • Mühldorf
Carinthia II, 187./107. (1997) 169-214
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • 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)
Slavíček, P.: Zeofylit ze Soutěsek u Děčína. Časopis pro mineralogii a geologii, 1984, roč. 29, č. 4, s. 432.
      • Ústí nad Labem (Aussig)
        • Řehlovice
          • Radejčín (Radzein)
Mikenda, W.; Pertlik, F.; Povondra, P.; Ulrych, J. (1997): On zeophyllite from Radejcin, Ceske stredohori Mountains. X-ray and IR investigations. Mineralogy and Petrology 61, 199-209.; Radoň M. Významné mineralogické lokality Českého středohoří. Minerál 2009, XVII(2):106-126. Cornu F. Uber den Zeophyllit von Radzein im Bohmischen Mittelgebirge. Tschermaks Min. Petr. Mitt., 24: 127-134. Wien 1905. Zimmermann R. Ein neues Zeophyllit-vorkommenzu Radzein in Bohmen. Cbl.Mineral.Geol.Paleont.,Jg.1905, 245-246. Stutgart 1905.
Pelikan A (1902) Beiträge zur kenntnis der zeolithe Böhmens, Sitzungsberichte der Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse, 111, 334-347
Pelikan A. (1902) Beiträge zur kenntnis der zeolithe Böhmens. Sitzungsberichte der Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse 111, 334-347
  • North Rhine-Westphalia
    • Siebengebirge
      • Königswinter
Brauns, R., (1922): Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart
  • Rhineland-Palatinate
    • Eifel
      • Mayen
        • Ettringen
          • Bellerberg volcano
[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
  • Veszprém Co.
    • Balaton Uplands
      • Tapolcai Basin
        • Uzsa (Uzsabánya)
  • 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
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Shitouyouze
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)
  • Harghita Co.
    • Ditrău (Ditró)
Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
  • Northern Caucasus Region
    • Kabardino-Balkarian Republic
      • Baksan Valley
        • Upper Chegem volcanic caldera (Verkhnechegemskaya caldera)
A. E. Zadov data
  • Northern Region
    • Murmanskaya Oblast'
      • 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]
  • Skåne
    • Hässleholm
      • Häglinge
The Swedish Museum of Natural History collection # 19930480
  • Michigan
    • Ontonagon Co.
      • Mass City
Mineralogy of Michigan (2004) Heinrich & Robinson
  • Texas
    • Culberson Co.
      • Apache Peak area
Am Min 51:1766-1774
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