Perlialite (original) (raw)

A valid IMA mineral species

About PerlialiteHide

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Formula:

K9Na(Ca,Sr)[Al2Si4O12]6 · 15H2O

Name:

Named for Perekrest Lily Alekseevna (Лилия Алексеевна Перекрест) (1928 - ), Instructor of Mineralogy at the Kirov Mining Technical School, Kirovsk, Russia.

This page provides mineralogical data about Perlialite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:3163:5

3ded0957-322c-4096-82c5-7db6a781695e

IMA Classification of PerlialiteHide

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IMA Formula:

K9NaCa(Si24Al12)O72 · 15H2O

Type description reference:

Classification of PerlialiteHide

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9.GC.25

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
C : Chains of doubly-connected 4-membered rings

77.1.3.8

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites

16.10.24

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

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Physical Properties of PerlialiteHide

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Density:

2.14 g/cm3 (Measured) 2.15 g/cm3 (Calculated)

Optical Data of PerlialiteHide

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RI values:

_n_ω = 1.483(2) _n_ε = 1.488(2)

δ = 0.005

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Dispersion:

relatively strong

Chemistry of PerlialiteHide

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Mindat Formula:

K9Na(Ca,Sr)[Al2Si4O12]6 · 15H2O

Common Impurities:

Ti,Fe,Mg

Crystallography of PerlialiteHide

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Class (H-M):

6/m m m _(_6/_m_2/_m_2/m ) - Dihexagonal Dipyramidal

Cell Parameters:

a = 18.5432(4) Å, c = 7.5310(3) Å

Unit Cell V:

2,242.60 ų (Calculated from Unit Cell)

Crystal StructureHide

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X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of PerlialiteHide

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General Appearance of Type Material:

Crystals acicular, in fibrous aggregates, radiating, to 2 cm.

Place of Conservation of Type Material:

Geology Museum, Kola Branch, Academy of Sciences, Apatity, Russia, 5773/1-2.
Mineralogical Museum, St. Petersburg University, St. Petersburg, Russia, 17945, 17953.
Mining Institute, St. Petersburg, Russia, 1675/1-2.
Il'menskii Preserve Museum, Miass, Russia, 4971.
Vernadsky Geological Museum, Moscow, Russia, 57643.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 83417.

Associated Minerals at Type Locality:

Reference:

Men'chikov, Y.P. (1984) Perlialite K9Na(Ca,Sr)Al12Si24O72·15H2O, a new potassian zeolite from the Khibina massif. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 113(5): 607-612.

Other Language Names for PerlialiteHide

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Relationship of Perlialite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for PerlialiteHide

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References for PerlialiteHide

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Reference List:

Dunn, Pete J., Ferraiolo, James A., Fleischer, Michael, Gobel, Volker, Grice, Joel D., Langley, Richard H., Shigley, James E., Vanko, David A., Zilczer, Janet A. (1985) New mineral names. American Mineralogist, 70 (11-12) 1329-1335

Coombs, Douglas S., Alberti, Alberto, Armbruster, Thomas, Artioli, Gilberto, Colella, Carmine, Galli, Ermanno, Grice, Joel D., Liebau, Friedrich, Mandarino, Joseph A., Minato, Hideo, Nickel, Ernest H., Passaglia, Elio, Peacor, Donald R., Quartieri, Simona, Rinaldi, Romano, Ross, Malcolm I., Sheppard, Richard A., Tillmanns, Ekkehart, Vezzalini, Giovanna (1997) Recommended nomenclature for zeolite minerals; report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35 (6) 1571-1606

Localities for PerlialiteHide

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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

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