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Zeophyllite

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Formula:
Ca13Si10O28(OH)2F8 · 6H2O
System:
Trigonal
Colour:
White
Lustre:
Pearly
Hardness:
3
Name:
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.


Classification of Zeophyllite

Approved, 'Grandfathered' (first described prior to 1959)
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
73.1.4.1

73 : PHYLLOSILICATES Condensed Tetrahedral Sheets
1 : Condensed Tetrahedral Sheets with double layers
17.1.17

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

Physical Properties of Zeophyllite

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

Optical Data of Zeophyllite

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

Chemical Properties of Zeophyllite

Formula:
Ca13Si10O28(OH)2F8 · 6H2O
Elements listed in formula:
Common Impurities:
Al,Fe,Mg,Na,K

Crystallography of Zeophyllite

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 9.36 Å, b = 9.36 Å, c = 34.48 Å
Ratio:
a:b:c = 1 : 1 : 3.684
Unit Cell Volume:
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°.
X-Ray Powder Diffraction:
Image Loading

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

Type Occurrence of Zeophyllite

Relationship of Zeophyllite to other Species

9.EE.05BementiteMn7Si6O15(OH)8
9.EE.10BrokenhilliteMn8Si6O15(OH)10
9.EE.10Pyrosmalite-(Fe)Fe82+Si6O15(OH)10
9.EE.10FriedeliteMn82+Si6O15(OH)10
9.EE.10Pyrosmalite-(Mn)Mn82+Si6O15(OH,Cl)10
9.EE.10McgilliteMn82+Si6O15(OH)8Cl2
9.EE.15NeleniteMn162+As33+Si12O36(OH)17
9.EE.15SchalleriteMn162+As33+Si12O36(OH)17
9.EE.20Palygorskite(Mg,Al)2Si4O10(OH) · 4H2O
9.EE.20TuperssuatsiaiteNa2(Fe3+,Mn2+)3Si8O20(OH)2 · 4H2O
9.EE.20Yofortierite(Mn2+,Mg,Fe3+)5Si8O20(OH,H2O)2 · 7H2O
9.EE.20WindhoekiteCa2Fe3+2.67(Si8O20)(OH)4 · 10H2O
9.EE.25FalcondoiteNi4Si6O15(OH)2 · 6H2O
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2O
9.EE.25SepioliteMg4Si6O15(OH)2 · 6H2O
9.EE.25KalifersiteK5Fe73+Si20O50(OH)6 · 12H2O
9.EE.30GyroliteNaCa16(Si23Al)O60(OH)8 · 14H2O
9.EE.30OrlymaniteCa4Mn32+Si8O20(OH)6 · 2H2O
9.EE.30TungusiteCa14Fe92+Si24O60(OH)22
9.EE.35ReyeriteNa2Ca14Al2Si22O58(OH)8 · 6H2O
9.EE.35TruscottiteCa14Si24O58(OH)8 · 2H2O
9.EE.40NatrosiliteNa2Si2O5
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2O
9.EE.50VarennesiteNa8(Mn,Fe3+,Ti)2Si10O25(OH,Cl)2 · 12H2O
9.EE.55RaiteNa3Mn32+Ti0.25Si8O20(OH)2 · 10H2O
9.EE.60IntersiliteNa6Mn(Ti,Nb)Si10(O,OH)28 · 4H2O
9.EE.65ShafranovskiteNa3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2O
9.EE.65ZakharoviteNa4Mn52+Si10O24(OH)6 · 6H2O
9.EE.75MinehilliteK2-3Ca28Zn5Al4Si40O112(OH)16
9.EE.80Fedorite(K,Na)2.5(Ca,Na)7Si16O38(OH,F)2 · 3.5H2O
9.EE.80Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2 · 4H2O
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 · 3H2O
17.1.1HectoriteNa0.3(Mg,Li)3Si4O10(F,OH)2 · nH2O
17.1.3AgrelliteNaCa2Si4O10F
17.1.4Fluorapophyllite-(Na)NaCa4Si8O20F · 8H2O
17.1.5Fluorapophyllite-(K)KCa4Si8O20F · 8H2O
17.1.6Hydroxyapophyllite-(K)KCa4Si8O20(OH,F) · 8H2O
17.1.7HsianghualiteLi2Ca3Be3(SiO4)3F2
17.1.8LeucophaniteNaCaBeSi2O6F
17.1.9NorbergiteMg3SiO4F2
17.1.10ChondroditeMg5(SiO4)2F2
17.1.11HumiteMg7(SiO4)3(F,OH)2
17.1.12ClinohumiteMg9(SiO4)4F2
17.1.13CanasiteK3Na3Ca5Si12O30(OH)4
17.1.14Charoite(K,Sr,Ba,Mn)15-16(Ca,Na)32Si70(O,OH)180(OH,F)4 · nH2O
17.1.15CuspidineCa4(Si2O7)F2
17.1.16BultfonteiniteCa2[SiO3(OH)]F · H2O
17.1.18Rowlandite-(Y)Fe2+Y4(Si2O7)2F2
17.1.19YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3
17.1.20Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6
17.1.21Mosandrite-(Ce)(Ca3Ce)[(H2O)2Ca0.50.5]Ti(Si2O7)2(OH)2(H2O)2
17.1.22Hiortdahlite(Na,Ca)2Ca4Zr(Mn,Ti,Fe)(Si2O7)2(F,O)4
17.1.23BurpaliteNa2CaZr(Si2O7)F2
17.1.24SeidozeriteNa2Zr2Na2MnTi(Si2O7)2O2F2
17.1.25Thorosteenstrupine(Ca,Th,Mn)3Si4O11F · 6H2O
17.1.26ZircophylliteK2NaMn72+Zr2(Si4O12)2O2(OH)4F
17.1.27JinshajiangiteBaNaFe42+Ti2(Si2O7)2O2(OH)2F
17.1.28RosenbuschiteCa6Zr2Na6ZrTi(Si2O7)4(OF)2F4
17.1.29NarsarsukiteNa2(Ti,Fe3+)Si4(O,F)11
17.1.30SonoliteMn92+(SiO4)4(OH)2

Other Names for Zeophyllite

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 Zeophyllite

Reference List:
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 Zeophyllite

mindat.org URL:
https://www.mindat.org/min-4396.html
Please feel free to link to this page.

Localities for Zeophyllite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Austria
 
  • Styria
    • Feldbach
      • Mühldorf
Carinthia II, 187./107. (1997) 169-214
Canada
 
  • 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
Germany
 
  • 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
Hungary
 
  • Veszprém Co.
    • Balaton Uplands
      • Tapolcai Basin
        • Uzsa (Uzsabánya)
Vezzalini,2003
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 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)
Romania
 
  • 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.
Russia
 
  • Northern Caucasus Region
    • Kabardino-Balkarian Republic
      • Baksan Valley
        • Upper Chegem volcanic caldera (Verkhnechegemskaya caldera)
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
The Swedish Museum of Natural History collection # 19930480
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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