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|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, Kitaa (West Greenland) Province, Greenland|
|Year of Discovery:||1906|
Physical Properties of Reyerite
|Diaphaneity (Transparency):||Transparent, Translucent|
|Hardness (Mohs):||3 - 4|
Crystallography of Reyerite
|Cell Parameters:||a = 9.76Å, c = 19.06Å|
|Ratio:||a:c = 1 : 1.953|
|Unit Cell Volume:||V 1,572.36 Å³ (Calculated from Unit Cell)|
Optical Data of Reyerite
|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.
Chemical Properties of Reyerite
|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):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Reyerite
|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
Cornu, F. (1907) The Differentiation of the Minerals of the Mica Zeolite Group. Mineral. Petrogr. Mitt. 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
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.
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