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Reyerite

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Formula:
(Na,K)
 
2
Ca
 
14
(Si,Al)
 
24
O
 
58
(OH)
 
8
· 6H
 
2
O
System:TrigonalColour:Colourless, white
Hardness:3 - 4
Name:Named after Edouard Reyer, Austrian geologist.


Crystal structure related to that of minehillite.

Classification of Reyerite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/H.34-30
Nickel-Strunz 10th (pending) edition ID:9.EE.35

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
Dana 8th edition ID:73.2.2a.1

73 : PHYLLOSILICATES Condensed Tetrahedral Sheets
2 : Condensed Tetrahedral Sheets with double and single layers
Hey's CIM Ref.:16.10.16

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

Type Locality:Niaqornat (Niakornak), Nuussuaq Peninsula, Qaasuitsup, Greenland
Year of Discovery:1906

Physical Properties of Reyerite

Lustre: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
Maximum Birefringence:δ = 0.002

Chart 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)
 
2
Ca
 
14
(Si,Al)
 
24
O
 
58
(OH)
 
8
· 6H
 
2
O
Simplified for copy/paste:(Na,K)2Ca14(Si,Al)24O58(OH)8·6H2O
Essential elements:Ca, H, Na, O, Si
All elements listed in formula:Al, Ca, H, K, Na, O, Si

Relationship of Reyerite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.EE.05Bementite
Mn
 
7
Si
 
6
O
 
15
(OH)
 
8
9.EE.10Brokenhillite
Mn
 
8
Si
 
6
O
 
15
(OH)
 
10
9.EE.10Pyrosmalite-(Fe)
(Fe,Mn)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Friedelite
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Pyrosmalite-(Mn)
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH,Cl)
 
10
9.EE.10Mcgillite
(Mn,Fe)
 
8
Si
 
6
O
 
15
(OH)
 
8
Cl
 
2
9.EE.15Nelenite
(Mn,Fe)
 
16
(Si
 
12
O
 
30
)(OH)
 
14
[As
3+
3
O
 
6
(OH)
 
3
]
9.EE.15Schallerite
(Mn,Fe)
 
16
Si
 
12
As
 
3
O
 
36
(OH)
 
17
9.EE.20Palygorskite
(Mg,Al)
 
5
(Si,Al)
 
8
O
 
20
(OH)
 
2
· 8H
 
2
O
9.EE.20Tuperssuatsiaite
Na
 
2
Fe
 
3
Si
 
8
O
 
20
(OH)
 
2
· 4H
 
2
O
9.EE.20Yofortierite
Mn
 
5
Si
 
8
O
 
20
(OH)
 
2
· 8-9H
 
2
O
9.EE.20Windhoekite
Ca
 
2
Fe
3+
2.67
[Si
 
8
O
 
20
](OH)
 
4
· 10H
 
2
O
9.EE.25Falcondoite
(Ni,Mg)
 
4
Si
 
6
O
 
15
(OH)
 
2
· 6H
 
2
O
9.EE.25Loughlinite
Na
 
2
Mg
 
3
Si
 
6
O
 
16
· 8H
 
2
O
9.EE.25Sepiolite
Mg
 
4
(Si
 
6
O
 
15
)(OH)
 
2
· 6H
 
2
O
9.EE.25Kalifersite
(K,Na)
 
5
Fe
3+
7
Si
 
20
O
 
50
(OH)
 
6
· 12H
 
2
O
9.EE.30Gyrolite
NaCa
 
16
Si
 
23
AlO
 
60
(OH)
 
8
· 14H
 
2
O
9.EE.30Orlymanite
Ca
 
4
Mn
 
3
Si
 
8
O
 
20
(OH)
 
6
· 2H
 
2
O
9.EE.30Tungusite
Ca
 
4
Fe
 
2
Si
 
6
O
 
15
(OH)
 
6
9.EE.35Truscottite
(Ca,Mn)
 
14
Si
 
24
O
 
58
(OH)
 
8
· 2H
 
2
O
9.EE.40Natrosilite
Na
 
2
Si
 
2
O
 
5
9.EE.45Makatite
Na
 
2
Si
 
4
O
 
8
(OH)
 
2
· 4H
 
2
O
9.EE.50Varennesite
Na
 
8
Mn
 
2
Si
 
10
O
 
25
(OH,Cl)
 
2
· 12H
 
2
O
9.EE.55Raite
Na
 
4
Mn
2+
3
Ti
 
0.25
Si
 
8
O
 
20
(OH)
 
2
· 10H
 
2
O
9.EE.60Intersilite
Na
 
6
Mn
2+
 
Ti[Si
 
10
O
 
24
(OH)](OH)
 
3
· 4H
 
2
O
9.EE.65Shafranovskite
(Na,K)
 
6
(Mn,Fe)
 
3
Si
 
9
O
 
24
· 6H
 
2
O
9.EE.65Zakharovite
Na
 
4
Mn
 
5
Si
 
10
O
 
24
(OH)
 
6
· 6H
 
2
O
9.EE.70Zeophyllite
Ca
 
13
(Si
 
10
O
 
28
)F
 
10
· 6H
 
2
O
9.EE.75Minehillite
(K,Na)
 
2-3
Ca
 
28
Zn
 
4
Al
 
4
Si
 
40
O
 
112
(OH)
 
16
9.EE.80Fedorite
(Na,K)
 
2-3
(Ca
 
4
Na
 
3
)Si
 
16
O
 
38
F
 
2
· 3.5H
 
2
O
9.EE.80Martinite
(Na,Ca)
 
11
Ca
 
4
(Si,S,B)
 
14
B
 
2
O
 
40
F
 
2
·4H
 
2
O
9.EE.85Lalondeite
(Na,Ca)
 
6
(Ca,Na)
 
3
Si
 
16
O
 
38
(F,OH)
 
2
·3H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
16.10.1Bytownite
(Ca,Na)[Al(Al,Si)Si
 
2
O
 
8
]
16.10.2Lisetite
CaNa
 
2
Al
 
4
Si
 
4
O
 
16
16.10.4Thomsonite-Ca
NaCa
 
2
[Al
 
5
Si
 
5
O
 
20
] · 6H
 
2
O
16.10.5Gonnardite
(Na,Ca)
 
2
(Si,Al)
 
5
O
 
10
· 3H
 
2
O
16.10.6Mesolite
Na
 
2
Ca
 
2
Si
 
9
Al
 
6
O
 
30
· 8H
 
2
O
16.10.7Faujasite
16.10.8Garronite
Na
 
2
Ca
 
5
Al
 
12
Si
 
20
O
 
64
· 27H
 
2
O
16.10.9Boggsite
Ca
 
8
Na
 
3
(Si,Al)
 
96
O
 
192
· 70H
 
2
O
16.10.10Herschelite
16.10.11Phillipsite
16.10.12Fedorite
(Na,K)
 
2-3
(Ca
 
4
Na
 
3
)Si
 
16
O
 
38
F
 
2
· 3.5H
 
2
O
16.10.13Willhendersonite
KCa[Al
 
3
Si
 
3
O
 
12
] · 5H
 
2
O
16.10.14Barrerite
(Na,K,Ca
 
0.5
)
 
2
[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
16.10.15Mordenite
(Na
 
2
,Ca,K
 
2
)Al
 
2
Si
 
10
O
 
24
· 7H
 
2
O
16.10.17Lévyne
16.10.18Clinoptilolite
16.10.19Heulandite
16.10.20Gobbinsite
Na
 
4
(Ca,Mg,K
 
2
)Al
 
6
Si
 
10
O
 
32
· 12H
 
2
O
16.10.21Stilbite
16.10.22Dachiardite
16.10.23Offretite
KCaMgAl
 
5
Si
 
13
O
 
36
· 16H
 
2
O or near
16.10.24Perlialite
K
 
9
Na(Ca,Sr)[Al
 
2
Si
 
4
O
 
12
]
 
6
· 15H
 
2
O
16.10.25Erionite
16.10.26Paulingite
16.10.27Sodium Dachiardite
(Na
 
2
,Ca,K
 
2
)
 
4-5
Al
 
8
Si
 
40
O
 
96
· 26H
 
2
O
16.10.28Mazzite-Mg
K
 
2
Mg
 
2
Ca
 
1.5
Al
 
9.5
Si
 
26.5
O
 
72
· 28H
 
2
O or near
16.10.29Roggianite
Ca
 
2
Be(OH)
 
2
Al
 
2
Si
 
4
O
 
13
· 2.5H
 
2
O

Other Names for Reyerite

Synonyms:
Glimer Zeolith
Other Languages:
German:Reyerit
Russian:Рейерит
Spanish:Reyerita

Other Information

Health Warning: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

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Reyerite details from Handbook of Mineralogy (PDF)
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  • Localities for Reyerite

    The 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. ? 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
     
    • 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 (Inverness-shire)
        • Isle of Skye
    Livingstone, A. (1988): Reyerite, tobermorite, calcian analcime, and bytownite from amygdales in a Skye basalt. Mineralogical Magazine 52, 711-713.
      • Strathclyde (Argyllshire)
        • 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
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