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Reyerite

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Formula:
(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2O
System:
Trigonal
Colour:
Colourless, white
Hardness:
3 - 4
Name:
Named after Edouard Reyer, Austrian geologist.
Crystal structure related to that of minehillite.

Classification of Reyerite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.EE.35

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
73.2.2a.1

73 : PHYLLOSILICATES Condensed Tetrahedral Sheets
2 : Condensed Tetrahedral Sheets with double and single layers
16.10.16

16 : Silicates Containing Aluminum and other Metals
10 : Aluminosilicates of Ca and alkalis
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Type Occurrence of Reyerite

Year of Discovery:
1906

Physical Properties of Reyerite

Vitreous, Pearly
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Colourless, white
Hardness (Mohs):
3 - 4

Crystallography of Reyerite

Crystal System:
Trigonal
Cell Parameters:
a = 9.76Å, c = 19.06Å
Ratio:
a:c = 1 : 1.953
Unit Cell Volume:
V 1,572.36 ų (Calculated from Unit Cell)

Optical Data of Reyerite

Type:
Uniaxial (-)
RI values:
nω = 1.556 - 1.563 nε = 1.558 - 1.563
Max Birefringence:
δ = 0.002
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of Reyerite

Formula:
(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2O
Essential elements:
All elements listed in formula:

Relationship of Reyerite to other Species

9.EE.05BementiteMn7Si6O15(OH)8
9.EE.10BrokenhilliteMn8Si6O15(OH)10
9.EE.10Pyrosmalite-(Fe)(Fe,Mn)8Si6O15(OH,Cl)10
9.EE.10Friedelite(Mn,Fe)8Si6O15(OH,Cl)10
9.EE.10Pyrosmalite-(Mn)(Mn,Fe)8Si6O15(OH,Cl)10
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2
9.EE.15Nelenite(Mn,Fe)16(Si12O30)(OH)14[As33+O6(OH)3]
9.EE.15Schallerite(Mn,Fe)16Si12As3O36(OH)17
9.EE.20Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
9.EE.20TuperssuatsiaiteNa2Fe3Si8O20(OH)2 · 4H2O
9.EE.20YofortieriteMn5Si8O20(OH)2 · 8-9H2O
9.EE.20WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2O
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2O
9.EE.25SepioliteMg4(Si6O15)(OH)2 · 6H2O
9.EE.25Kalifersite(K,Na)5Fe73+Si20O50(OH)6 · 12H2O
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
9.EE.30TungusiteCa4Fe2Si6O15(OH)6
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2O
9.EE.40NatrosiliteNa2Si2O5
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2O
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2O
9.EE.55RaiteNa4Mn32+Ti0.25Si8O20(OH)2 · 10H2O
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2O
9.EE.65Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2O
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2O
9.EE.70ZeophylliteCa13(Si10O28)F10 · 6H2O
9.EE.75Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16
9.EE.80Fedorite(Na,K)2-3(Ca4Na3)Si16O38(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
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
16.10.8GarroniteNa2Ca5Al12Si20O64 · 27H2O
16.10.9BoggsiteCa8Na3(Si,Al)96O192 · 70H2O
16.10.10Herschelite
16.10.11Phillipsite
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
16.10.17Lévyne
16.10.18Clinoptilolite
16.10.19Heulandite
16.10.20GobbinsiteNa4(Ca,Mg,K2)Al6Si10O32 · 12H2O
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 Reyerite

Name in Other Languages:
German:Reyerit
Spanish:Reyerita

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 Reyerite

Reference List:
Cornu F. & Himmelbauer, A. (1906): Reyerit. Tschermaks Mineralogische und Petrographische Mitteilungen. 25, 519-520

Cornu, F. (1907) The Differentiation of the Minerals of the Mica Zeolite Group. Tschermaks Mineralogische und Petrographische Mitteilungen. 25, 513-521.

Meyer, J. W. & Jaunarajs, K. L. (1961) Synthesis and crystal chemistry of gyrolite and reyerite. American Mineralogist. 46, 913-933.

Mineralogical Magazine (1964) 33: 821-840.

Cann, J. R. (1965) Gyrolite and reyerite from 'S Airde Beinn, northern Mull. Mineralogical Magazine, 35, 1-4.

Clement, S. C. & Ribbe, P. H. (1973) New locality, formula, and proposed structure for reyerite. American Mineralogist 58, 517-522.

Gard, J. A.; Mitsuda, T.; Taylor, H. F. W. (1975) Assarsson's Z-phase and its structural relations to gyrolite, truscottite, and reyerite. Mineralogical Magazine, 40, 325-333.

Merlino, S. (1988) The structure of reyerite, (Na,K)2Ca14Si22Al2O58(OH)8.6H2O. Mineralogical Magazine, 52, 247-255.

Internet Links for Reyerite

Localities for Reyerite

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.
Greenland (TL)
 
  • Qaasuitsup
    • Nuussuaq Peninsula
Cornu F. & Himmelbauer, A. (1906): Reyerit. Tschermaks Mineralogische und Petrographische Mitteilungen. 25, 519-520; Mineralogical Magazine 1964 33 : 821-840
Réunion Island
André Melle, Nicolas Meisser (4-2010) Contribution à l'Inventaire Minéralogique de l'Ile de La Réunion . Le Cahier des Micromonteurs 110:12-27
UK
 
  • Scotland
    • North West Highlands
      • Isle of Skye
Livingstone, A. (1988): Reyerite, tobermorite, calcian analcime, and bytownite from amygdales in a Skye basalt. Mineralogical Magazine 52, 711-713.
    • Strathclyde
      • Isle of Mull
Mineralogical Magazine 1965 34 : 92-106.
[Specimen in the Natural History Museum, London]
USA
 
  • North Carolina
    • Durham Co.
      • Durham
Kenny Gay message 15.09.2005
  • Virginia
    • Brunswick Co.
      • McKenny
Clement, S. C. & Ribbe, P. H. (1973): New locality, formula, and proposed structure for reyerite. American Mineralogist 58, 517-522; Minerals of Virginia 1990 by R. V. Dietrich
Mineral and/or Locality  
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