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Perlialite

Pictures (3 Images total)

Perlialith, seidige Hohlraumfüllung
Views (Image: 1156800365): 874
Perlialith, seidige Hohlraumfüllung

Fundort: Murun-Massiv, Chara-Fluss, Davan, Torgo-Becken, Aldan Schild, Jakutien, Ost-Sibirien, Russland; Größe: Bildausschnitt 4 x 3,5 mm

Copyright: Torben
Contribution: Torben 2006-08-28
Locality: Murun-Massiv (Murunskyi Massif) / Aldan / Sacha (Sakha, Jakutien, Якутия), Republik / Ferner Osten, Föderationskreis / Russland
Perlialit
Views (Image: 1446833613): 581
Perlialit

fasrifer Perlialit auf Feldspat,; Fundort Chibiny, Eveslogtchorr,

Collection: uwe
Copyright: uwe
Contribution: uwe 2015-11-06
Locality: Eweslogchorr (Eveslogchorr) / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Perlialith
Views (Image: 1360597939): 670
Perlialith

Bildbreite: 2 mm, Fundort: Eweslogchorr, Khibiny, Kola-Halbinsel, Murmansk, Russland

Copyright: Luigi Chiappino
Contribution: thdun5 2013-02-11
Locality: Eweslogchorr (Eveslogchorr) / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color perlweiß
Streak color weiß
Hardness (Mohs) 4.5
Solubility +++ Säuren
Crystal System hexagonal, P6/mmm

Chemism

Chem­ical formula

K9Na(Ca,Sr)(Si24Al12)O72·15H2O

Chem­ical com­po­si­tion

Aluminium, Calcium, Natrium, Silicium, Strontium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 2846.8586086 u; Number of atoms in the formula: 164

Info

Empirical formula:

K9Na(Ca0.75Sr0.25)(Si24Al12)O72·15H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.06

30

18.29

1.0079470

30.2384100

Oxygen

O

48.89

87

53.05

15.9994300

1,391.9504100

Sodium

Na

0.81

1

0.61

22.9897702

22.9897702

Aluminium

Al

11.37

12

7.32

26.9815382

323.7784584

Silicon

Si

23.68

24

14.63

28.0855300

674.0527200

Potassium

K

12.36

9

5.49

39.0983100

351.8847900

Calcium

Ca

1.06

0.75

0.46

40.0784000

30.0588000

Strontium

Sr

0.77

0.25

0.15

87.6210000

21.9052500

Anal­y­sis wt%

SiO2 : 50.72, Al2O3 : 20.13, Fe2O3 : 0.92, SrO : 1.65, CaO : 0.96, Na2O : 0.98, K2O : 14.86, H2O : 9.52 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 84)

Strunz 9th edi­tion incl. updates

9.GC.25

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
C: Ketten doppelt verbundener vierer-Ringe
25:Perlialith-Gruppe

Lapis Clas­sifica­tion

VIII/J.26-100

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
26: Zeolith-Gruppe; Würfelzeolithe

Clas­sifica­tion by Hölzel

9.FK.230

9: SILICATES
F: Tektosilicates
K: Doubly connected 4-Ring Chains

Dana 8th edi­tion

77.01.03.08

77: Tektosilicates Tectosilicate Zeolite group
01: Tektosilicates Tectosilicate Zeolite group true zeolites
03: Gismondine and related species

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Zeolite group  ⇒ LTL zeolite structure group

Optical Properties

Color

perlweiß

Streak color

weiß

max. Birefrin­gence

0.005

Birefringence chart\! Perlialite title=Birefringence chart Perlialite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.483

RI value γ / ε

1.488

Ri mean

1.485

2V angle

Uniaxial (+)

Optical Data Luminescence

Color SW-UV (254nm)

 

bläulich weiß

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6/mmm

Space Group number

191

Space Group

P6/mmm

Cell param­e­ters a (Å)

18.535

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

7.535

Cell param­e­ters a/b or c/a

0.407

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

1

Volumne (ų)

2241.811

X-Ray Pow­der Diffrac­tion

16.0(100),
6.0(70),
4.62(100),
3.94(70),
3.20(90),
2.674(80),
1.545(80),
1.306(100)

XRD chart Perlialite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

4.5

VHN (Hard­ness Vick­ers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.14

2.109 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren

Preface

Name from

Perekrest, Lily Alekseevna (Перекрест, Лилии Алексеевны; (1928-), Dozentin für Mineralogie an der Technischen Hochschule für Bergbau in Kirovsk, Russland

Author (Name, Year)

Men'shikov, 1984

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 113 (1984), 607

IMA group assignments

Other languages

German

Perlialit

https://rruff.info/rruff_1.0/uploads/AM70_1329.pdf#page=3

Spanish

Perlialita

French

Perlialite

English

Perlialite

Russian

Перлиалит

Simplified Chinese

硅铝铊石

Alternative Name

German

Perlialith

CNMNC symbol

Symbol

Pll

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Perlialit
Google-Bilder-Suche - search for: Perlialit
Mineralienatlas.de (Forum) - search for: Perlialit

English pages

Mindat - search for: Perlialite
Webmineral - search for:Perlialite
Handbook-of-Mineralogy - search for: Perlialite
RRUFF - Raman, XRD and other mineral data - search for: Perlialite
RRUFF - References and PDF downloads - search for: Perlialite
American-Mineralogist-Crystal-Structure-Database - search for: Perlialite
Strahlen.org - search for: Perlialite

Russian pages

Webmineral.ru - search for: Перлиалит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Perlialit
Crystal-Treasure.com - search for: Perlialit
Bosse - search for: Perlialit
Edelsteine Neuburg - Gundolf Fischer - search for: Perlialit

Locations with GPS information