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About ReyeriteHide

Eduard Reyer
(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2O
Colourless, white
Vitreous, Pearly
3 - 4
Crystal System:
Member of:
Named in honor of Eduard Reyer (16 May 1849, Salzburg, Austrian Empire - 11 July 1914, Jena, Austria-Hungary), geologist in Vienna, Austria.
Crystal structure related to that of gyrolite.

Classification of ReyeriteHide

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

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

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

Physical Properties of ReyeriteHide

Vitreous, Pearly
Transparent, Translucent
Colourless, white
3 - 4 on Mohs scale

Optical Data of ReyeriteHide

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:

Chemical Properties of ReyeriteHide

(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2O
IMA Formula:
Na2Ca14Al2Si22O58(OH)8 · 6H2O

Crystallography of ReyeriteHide

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

Type Occurrence of ReyeriteHide

Synonyms of ReyeriteHide

Other Language Names for ReyeriteHide


Relationship of Reyerite to other SpeciesHide

Member of:
Other Members of this group:
Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.

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. 1 : P1
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
9.EE.30TungusiteCa4Fe2Si6O15(OH)6Tric. 1 : P1
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.65ShafranovskiteNa3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2OTrig.
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig.
9.EE.70ZeophylliteCa13Si10O28(OH)2F8 · 6H2OTrig. 3 : R3
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 - Dana Grouping (8th Ed.)Hide

73.2.2a.2Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.10.4Thomsonite-CaNaCa2[Al5Si5O20] · 6H2OOrth. mmm (2/m 2/m 2/m)
16.10.5Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2OOrth.
16.10.6MesoliteNa2Ca2Si9Al6O30 · 8H2OOrth. mm2 : Fdd2
16.10.8Garronite-CaNa2Ca5Al12Si20O64 · 27H2OTet. 4 2m : I4m2
16.10.9BoggsiteCa8Na3(Si,Al)96O192 · 70H2OOrth. mmm (2/m 2/m 2/m) : Imma
16.10.10Herschelite(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2OTrig.
16.10.12Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1
16.10.13WillhendersoniteKCa[Al3Si3O12] · 5H2OTric.
16.10.14Barrerite(Na,K,Ca0.5)2[Al2Si7O18] · 7H2OOrth. mmm (2/m 2/m 2/m)
16.10.15Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2OOrth.
16.10.19Heulandite subgroup
16.10.20GobbinsiteNa5(Si11Al5)O32 · 11H2OOrth.
16.10.21Stilbite subgroup
16.10.23OffretiteKCaMg(Si13Al5)O36 · 15H2OHex. 6 m2 : P6m2
16.10.24PerlialiteK9Na(Ca,Sr)[Al2Si4O12]6 · 15H2OHex.
16.10.27Sodium Dachiardite(Na2,Ca,K2)4-5Al8Si40O96 · 26H2O
16.10.28Mazzite-Mg(Mg,K,Ca)5(Si26Al10)O72 · 28H2OHex.
16.10.29RoggianiteCa2Be(OH)2Al2Si4O13 · 2.5H2OTet.

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 ReyeriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.
Strunz, H. Micheelsen, H. (1958) Calcium-Phyllosilikate. Naturwissenschaften: 21: 515-516. (truscottite)
Fleischer, M. (1959) New mineral names. American Mineralogist: 44: 464-470.
Meyer, J.W., Jaunarajs, K.L. (1961) Synthesis and crystal chemistry of gyrolite and reyerite. American Mineralogist: 46: 913-933.
Chalmers, R.A., Farmer, V.C., Harker, R.I., Kelly, S., Taylor, H.F.W. (1964) Reyerite. Mineralogical Magazine: 33: 821-840.
Fleischer, M., Mandarino, J.A., Strunz, H., Cech, F. (1965) New mineral names. American Mineralogist: 50: 261-268.
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.
Lachowski, E.E., Murray, L.W., Taylor, H.F.W. (1979) Truscottite: composition and ionic substitutions. Mineralogical Magazine: 43: 333-336.
Merlino, S. (1988) The structure of reyerite, (Na,K)2Ca14Si22Al2O58(OH)8.6H2O. Mineralogical Magazine: 52: 247-255.
Henderson, C.M.B., Taylor, D. (1988) Reyerite, tobermorite, calcian analcime and bytownite from amygdales in a Skye basalt. Mineralogical Magazine: 52: 711-713.

Internet Links for ReyeriteHide

Localities for ReyeriteHide

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.
Denmark (TL)
  • Greenland
    • Avannaata
      • Nuussuaq Peninsula
        • Niaqornat
Cornu F. & Himmelbauer, A. (1906): Reyerit. Tschermaks Mineralogische und Petrographische Mitteilungen. 25: 519-520; Petersen, O. V. & Johnsen, O. (2005) Minerals first described from Greenland. The Canadian Mineralogist- Special Publication: 8, 184p.
  • Silesian Voivodeship
    • Bytom City Co.
Kruszewski, Ł. (2018)(?): Geochemical Behavior of Trace Elements in Upper and Lower Silesian Basin Coal-Fire Gob Piles, Poland. Coal and Peat Fires, vol. 5, xx-xx (in review/correction); Ł. Kruszewski EPMA/PXRD data
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
  • Scotland
    • Argyll and Bute
      • Isle of Mull
Cann, J.R. (1965) The metamorphism of amygdales at 'S Airde Beinn, Northern Mull. Mineralogical Magazine, vol. 34, n° 268, 92-106.; http://jncc.defra.gov.uk/pdf/gcrdb/GCRsiteaccount21.pdf
[Specimen in the Natural History Museum, London]
    • Highland
      • Isle of Skye
Livingstone, A. (1988): Reyerite, tobermorite, calcian analcime, and bytownite from amygdales in a Skye basalt. Mineralogical Magazine 52, 711-713.
        • near Drynoch
Steve Sorrell Collection
  • North Carolina
    • Durham Co.
      • Durham
Kenny Gay message 15.09.2005 . Smithsonian Institution Mineral Reference Collection No.171446-00
  • 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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