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Zeophyllite

A valid IMA mineral species - grandfathered
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03029020014947868502504.jpg
Zeophyllite, etc.

Ynglingarum, HÀglinge, HÀssleholm, SkÄne County, Sweden
02126890014947868578403.jpg
Zeophyllite, etc.

Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
01267600014947868532306.jpg
Zeophyllite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
03029020014947868502504.jpg
Zeophyllite, etc.

Ynglingarum, HÀglinge, HÀssleholm, SkÄne County, Sweden
02126890014947868578403.jpg
Zeophyllite, etc.

Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
01267600014947868532306.jpg
Zeophyllite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
03029020014947868502504.jpg
Zeophyllite, etc.

Ynglingarum, HÀglinge, HÀssleholm, SkÄne County, Sweden
02126890014947868578403.jpg
Zeophyllite, etc.

Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
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About ZeophylliteHide

Formula:
Ca13Si10O28(OH)2F8 · 6H2O
Colour:
White
Lustre:
Pearly
Hardness:
3
Specific Gravity:
2.747 - 2.764
Crystal System:
Trigonal
Name:
Named after the Greek "ζέω" (zeo), 'to boil', and "Ï†ÏÎ»Î»ÎżÎœ" (phyllos), 'leaf', alluding to its occurrence in hemispheral foliated forms and intumescence (swelling) on heating.
This page provides mineralogical data about Zeophyllite.


Unique IdentifiersHide

Mindat ID:
4396
Long-form identifier:
mindat:1:1:4396:6
GUID
(UUID V4):
9ba2b2f7-8fcc-4d9f-b0d2-3f63840043f7

IMA Classification of ZeophylliteHide

IMA status:
Approved, 'Grandfathered' (first described prior to 1959)
Type description reference:
Chalmers R A, Dent L S, Taylor H F W (1958) Zeophyllite. Mineralogical Magazine 31, 726-735

Classification of ZeophylliteHide

Strunz-mindat (2024):
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 ed.:
73.1.4.1
Dana 8th ed.:
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)

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
ZpIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ZeophylliteHide

Lustre:
Pearly
Transparency:
Translucent
Colour:
White
Hardness:
3 on Mohs scale
Cleavage:
Perfect
{0001}
Density:
2.747 - 2.764 g/cm3 (Measured)    2.75 g/cm3 (Calculated)

Optical Data of ZeophylliteHide

Type:
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:
Low
Comments:
anomalously biaxial

Chemistry of ZeophylliteHide

Mindat Formula:
Ca13Si10O28(OH)2F8 · 6H2O
Elements listed:
Ca, F, H, O, Si - search for minerals with similar chemistry
Common Impurities:
Al,Fe,Mg,Na,K

Crystallography of ZeophylliteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 9.36 Å, c = 34.48 Å
Ratio:
a:c = 1 : 3.684
Unit Cell V:
2,616.07 ų (Calculated from Unit Cell)
Z:
9
Morphology:
(Pseudo-?)hexagonal. As platy crystals in radiating spherical aggregates.
Comment:
Chalmers et al. (1956) give a pseudhexagonal cell with 9.34, 9.34, 13.2 Å, 90, 110, 120°.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009455ZeophylliteMerlino S (1972) The crystal structure of zeophyllite Acta Crystallographica B28 2726-27321972Radzein, Bohemia, Czech Republic0293
0014639ZeophylliteMikenda W, Pertlik F, Povondra P, Ulrych J (1997) On zeophyllite from Radejcin, Ceske stredohori Mts.: X-ray and IR-investigations Mineralogy and Petrology 61 199-2091997Alter Berg, Radzein0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
d-spacingIntensity
12.0 Å(100)
3.03 Å(80)
6.09 Å(60)
2.946 Å(60)
3.71 Å(50)
2.648 Å(50)
2.547 Å(50)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust>4.50
9 : Lava/xenolith minerals (hornfels, sanidinite facies)
10 : Basalt-hosted zeolite minerals
Near-surface Processes
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)

Type Occurrence of ZeophylliteHide

Type Locality:
ⓘ VelkĂ© Bƙezno, ÚstĂ­ nad Labem District, ÚstĂ­ nad Labem Region, Czech Republic
General Appearance of Type Material:
radiating platy crystals, to 1 cm
Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, USA, 86427.
Geological Setting of Type Material:
secondary mineral from hydrothermal alteration of basalt
Associated Minerals at Type Locality:
Apophyllite Group
Reference:
Chalmers R A, Dent L S, Taylor H F W (1958) Zeophyllite. Mineralogical Magazine 31, 726-735

Synonyms of ZeophylliteHide

Other Language Names for ZeophylliteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
13 photos of Zeophyllite associated with NatroliteNa2Al2Si3O10 · 2H2O
10 photos of Zeophyllite associated with Phillipsite Subgroup
10 photos of Zeophyllite associated with Apophyllite GroupAB4[Si8O22]X · 8H2O
7 photos of Zeophyllite associated with AnalcimeNa(AlSi2O6) · H2O
5 photos of Zeophyllite associated with CalciteCaCO3
4 photos of Zeophyllite associated with BrenkiteCa2(CO3)F2
2 photos of Zeophyllite associated with TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)

Related Minerals - Strunz-mindat GroupingHide

9.EE.CairncrossiteSr2Ca7-xNa2x(Si4O10)4(OH)2(H2O)15-xTric. 1 : P1
9.EE.05BementiteMn7Si6O15(OH)8Mon.
9.EE.07InnsbruckiteMn33(Si2O5)14(OH)38Mon. m : Bm
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.10Pyrosmalite-(Mn)Mn2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
9.EE.15Nelenite(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]Trig. 3m (3 2/m) : R3m
9.EE.15SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
9.EE.20Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2OMon. 2/m : B2/m
9.EE.20TuperssuatsiaiteFe3+Fe3+2(Na◻)◻2Si8O20(OH)2(H2O)4 · 2H2OMon. 2/m : B2/m
9.EE.20YofortieriteMn2+Mn2+2Mn2+2◻2Si8O20(OH)2(H2O)4 · 4H2OMon. 2/m : B2/m
9.EE.20WindhoekiteFe3+(Fe3+1.67◻0.33)Ca2◻2Si8O20(OH)2(H2O)4(OH)2 · 6H2OMon. 2/m : B2/m
9.EE.20Unnamed (Na-Ca-Fe-Silicate-Hydrate)NaCa(Fe2+,Al,Mn)5[Si8O19(OH)](OH)7 · 5H2OTric. 1 : P1
9.EE.20Windmountainite◻Fe3+2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2OMon. 2/m : B2/m
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2OOrth.
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2OOrth. mmm (2/m 2/m 2/m)
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. 1 : P1
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric. 1 : P1
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
9.EE.30TungusiteCa4Fe2Si6O15(OH)6Tric. 1 : P1
9.EE.35Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2OTrig. 3 : P3
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
9.EE.35KodamaiteNa3(Ca5Na)Si16O36(OH)4F2 · (14-x)H2O Tric. 1 : P1
9.EE.40NatrosiliteNa2Si2O5Mon. 2/m : P21/b
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2OMon. 2/m : P21/b
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
9.EE.55RaiteMn2+Mn2+2Na2(◻1.75Ti0.25)Si8O20(OH)2(H2O)4 · Na(H2O)6Orth. 2 2 2 : C2 2 2
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2OMon.
9.EE.65ShafranovskiteNa3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2OTrig. 3m : P3 1c
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig. 3m
9.EE.75Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16Hex.
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.80EllingseniteNa5Ca6Si18O38(OH)13 · 6H2OTric. 1 : P1
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 · 3H2OTric. 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.

Internet Links for ZeophylliteHide

References 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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Austria
 
  • Styria
    • SĂŒdoststeiermark District
      • Feldbach
        • MĂŒhldorf bei Feldbach
Postl et al. (1996) +1 other reference
Canada
 
  • QuĂ©bec
    • MontĂ©rĂ©gie
      • La VallĂ©e-du-Richelieu RCM
        • Mont Saint-Hilaire
166-175. +2 other references
Czech Republic
 
  • Liberec Region
    • ČeskĂĄ LĂ­pa District
      • Cvikov
PauliĆĄ et al. (2023)
  • ÚstĂ­ nad Labem Region
    • Děčín District
      • MalĂĄ Veleƈ
        • Soutěsky (Zautig)
Slavíček
    • ÚstĂ­ nad Labem District
      • Ƙehlovice
        • Radejčín (Radzein)
Mikenda +4 other references
Pelikan A (1902)
Pelikan (1902)
Germany
 
  • North Rhine-Westphalia
    • Cologne
      • Rhein-Sieg-Kreis
        • Königswinter
Brauns et al. (1922)
  • Rhineland-Palatinate
    • Ahrweiler
      • Brohltal
        • Brenk
Brauns
    • Mayen-Koblenz
      • Vordereifel
        • Ettringen
[Blass et al. (VI)
Hungary
 
  • VeszprĂ©m County
    • Tapolca District
      • Uzsa
Vezzalini
Italy
 
  • Campania
    • Naples
      • Somma-Vesuvius Complex
        • Mount Somma
Passaglia et al. (1983)
Japan
 
  • Fukushima Prefecture
Matsuyama (2001)
  • Okayama Prefecture
    • Takahashi City
      • BitchĆ«
        • Shitouyouze
Matsueda (1983)
Romania
 
  • Harghita County
Hirtopanu (2006)
SzakĂĄll et al. (2010)
Russia
 
  • Kabardino-Balkaria
    • Baksan Valley
      • Upper Chegem volcanic caldera (Verkhnechegemskaya caldera)
A. E. Zadov data
  • Murmansk Oblast
    • Khibiny Massif
Pekov et al. (2004)
      • Yukspor Mt
[World of Stones 95:5-6
Sweden
 
  • SkĂ„ne County
    • HĂ€ssleholm
      • HĂ€glinge
The Swedish Museum of Natural History ...
USA
 
  • Michigan
    • Ontonagon County
      • Mass City
Heinrich et al. (2004)
  • Texas
    • Culberson County
      • Apache Peak area
Bridge (1966)
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