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Perlialite

Big Photo

Yukspor Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Volker Betz

Show Perlialite Photos (7)
Formula:
K
 
9
Na(Ca,Sr)[Al
 
2
Si
 
4
O
 
12
]
 
6
 · 15H
 
2
O
System:HexagonalColour:White
Hardness:4 - 5
Name:Named for Lily Alekseevna Perekrest, Instructor of Mineralogy at the Kirov Mining Technical School
This page provides mineralogical data about Perlialite.

Classification of Perlialite

IMA status:Approved
Strunz 8th edition ID:8/J.26-100
Nickel-Strunz 10th (pending) edition ID:9.GC.25

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
C : Chains of doubly-connected 4-membered rings
Dana 8th edition ID:77.1.3.8

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites
Hey's CIM Ref.:16.10.24

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

Co-type Localities:Vuonnemiok River Valley, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Loparskaya Valley, Yukspor Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Year of Discovery:1984

Physical Properties of Perlialite

Lustre:Pearly
Colour:White
Hardness (Mohs):4 - 5

Crystallography of Perlialite

Crystal System:Hexagonal
Cell Parameters:a = 18.54Å, c = 7.53Å
Ratio:a:c = 1 : 0.406
Unit Cell Volume:V 2,241.53 ų (Calculated from Unit Cell)

Optical Data of Perlialite

Type:Biaxial
RI values: nα = 1.483 nγ = 1.488
Maximum Birefringence:δ = 0.005

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:relatively strong

Chemical Properties of Perlialite

Formula:
K
 
9
Na(Ca,Sr)[Al
 
2
Si
 
4
O
 
12
]
 
6
 · 15H
 
2
O
Essential elements:Al, Ca, H, K, Na, O, Si
All elements listed in formula:Al, Ca, H, K, Na, O, Si, Sr
Common Impurities:Ti,Fe,Mg

Relationship of Perlialite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.GC.05Amicite
K
 
2
Na
 
2
Al
 
4
Si
 
4
O
 
16
·5H
 
2
O
9.GC.05Garronite
Na
 
2
Ca
 
5
Al
 
12
Si
 
20
O
 
64
·27H
 
2
O
9.GC.05Gismondine-Ca
CaAl
 
2
Si
 
2
O
 
8
·4H
 
2
O
9.GC.05Gobbinsite
Na
 
4
(Ca,Mg,K
 
2
)Al
 
6
Si
 
10
O
 
32
·12H
 
2
O
9.GC.05Gismondine
Ca[Al
 
2
Si
 
2
O
 
8
]·4.5H
 
2
O
9.GC.10Harmotome
(Ba
 
0.5
,Ca
 
0.5
,K,Na)
 
5
[Al
 
5
Si
 
11
O
 
32
] ·12H
 
2
O
9.GC.10Phillipsite-Ca
(Ca
 
0.5
,K,Na,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
.
 
 12H2O
9.GC.10Phillipsite-K
(K,Na,Ca
 
0.5
,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
]
.
 
 12H
 
2
O
9.GC.10Phillipsite-Na
(Na,K,Ca
 
0.5
,Ba
 
0.5
)
 
4-7
[Al
 
4-7
Si
 
12-9
O
 
32
] · 12H
 
2
O
9.GC.10Flörkeite
(K
 
3
Ca
 
2
Na)[Al
 
8
Si
 
8
O
 
32
]·12H
 
2
O
9.GC.15Merlinoite
(K,Na)
 
5
(Ca,Ba)
 
2
Al
 
9
Si
 
23
O
 
64
·23H
 
2
O
9.GC.20Mazzite-Mg
K
 
2
Mg
 
2
Ca
 
1.5
Al
 
9.5
Si
 
26.5
O
 
72
·28H
 
2
O or near
9.GC.20Mazzite-Na
Na
 
4
[Al
 
4
Si
 
14
O
 
36
]
 
2
 · 30H
 
2
O
9.GC.30Boggsite
Ca
 
8
Na
 
3
(Si,Al)
 
96
O
 
192
·70H
 
2
O
9.GC.35Paulingite-Ca
(Ca,K
 
2
,Na
 
2
,Ba)
 
5
[Al
 
10
Si
 
35
O
 
90
] · 45H
 
2
O
9.GC.35Paulingite-K
(K
 
2
,Ca,Na
 
2
,Ba)
 
5
[Al
 
10
Si
 
35
O
 
90
] · 45H
 
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
 
2
Ca[Al
 
2
Si
 
3
O
 
10
]
 
2
 · 7H
 
2
O
16.10.6Mesolite
Na
 
2
Ca
 
2
[Al
 
2
Si
 
3
O
 
10
]
 
3
 · 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
16.10.16Reyerite
(Na,K)
 
2
Ca
 
14
(Si,Al)
 
24
O
 
58
(OH)
 
8
·6H
 
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
16.10.25Erionite
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 Perlialite

Other Languages:
German:Perlialit
Russian:Перлиалит
Spanish:Perlialita

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 Perlialite

Reference List:American Mineralogist (1985): 70: 1331.

European Journal of Mineralogy: 2: 749-759.

Internet Links for Perlialite

Search Engines:
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    • External Links:
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  • Look for Perlialite on Wikipedia
  • Look for Perlialite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Perlialite in the Natural History Museum (London) online catalogue
  • Perlialite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
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  • Rare and Unusual minerals at Mineralogical Research Company
  • Fabre Minerals - search for Perlialite specimens
  • SpiriferMinerals.com - high quality specimens
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  • Find Perlialite on www.crystalclassics.co.uk
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    Localities for Perlialite

    (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.
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan Shield
          • Chara and Tokko Rivers Confluence
    		[Lapis 1993:4 p.13-20]
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		[World of Stones 95:5-6, p64]
    P.M. Kartashov data
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
            • Yukspor Mt
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 27th Oct 2009 20:06:35