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Erionite-K

Pictures (5 Images total)

Erionit-K
Views (Image: 1294082668): 1504
Erionit-K

Größe: 4,82 mm; Fundort: Thumb Butte, Ash Peak District, Graham Co., Arizona, USA
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2011-01-03
Locality: Thumb Butte / Ash Peak District / Graham Co. / Arizona / USA
Erionit-K
Views (Image: 1292697619): 1173
Erionit-K (SNr: A009453)

Langprismatische farblose Kristalle auf Tonmineral; BB = 2,5 mm. Fundort: Whiskey Bay, Moeraki, Dunedin, Otago Region, South Island, Neuseeland.
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2010-12-18
Locality: Whiskey Bay / Moeraki / Dunedin / Otago, Region / South Island / Neuseeland
Erionit-K (analysiert)
Views (Image: 1217347169): 3108
Erionit-K (analysiert)

Bildbreite: 7 mm; Fundort: Chase Creek, Falkland, Kamloops Mining Division, British Columbia, Kanada
Copyright: Leonardus
Contribution: slugslayer 2008-07-29
Locality: Chase Creek / Falkland / Kamloops Mining Division / British Columbia / Kanada
Erionit-K
Views (Image: 1292698060): 1006
Erionit-K (SNr: A018640)

Langprismatische farblose Kristalle auf Tonmineral mit Phillipsit-K; BB = <1 mm. Fundort: Whiskey Bay, Moeraki, Dunedin, Otago Region, South Island, Neuseeland.
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2010-12-18
Locality: Whiskey Bay / Moeraki / Dunedin / Otago, Region / South Island / Neuseeland
Erionit - (K)
Views (Image: 1638104360): 103
Erionit - (K)

BB: 1,2 mm; hexagonale Erionit Prismen FJ: 6/88; Chase Creek / Einmündung von Charcoal Creek, Westwold, British Columbia, Kanada
Collection: Harald Biecker
Copyright: Harald Biecker
Contribution: Harald Biecker 2021-11-28
Locality: Chase Creek / Falkland / Kamloops Mining Division / British Columbia / Kanada

Collectors Summary

Color weiß, grün, grau, orange
Streak color weiß
Crystal System hexagonal, P63/mmc

Chemism

Chem­ical formula

K10(Si,Al)36O72·28H2O

Addi­tional chem. informa­tion

Enthält häufig auch Ca und Na. Bei der Auswertung von Analysen ist zu beachten, dass ein Ca durch 2 Na oder K ersetzt wird.

Chem­ical com­po­si­tion

Aluminium, Silicium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 3048.5142858 u; Number of atoms in the formula: 202

Info

Empirical formula:

K10(Si0.75Al0.25)36O72·28H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.85

56

27.72

1.0079470

56.4450320
Oxygen

O

52.48

100

49.50

15.9994300

1,599.9430000
Aluminium

Al

7.97

9

4.46

26.9815382

242.8338438
Silicon

Si

24.87

27

13.37

28.0855300

758.3093100
Potassium

K

12.83

10

4.95

39.0983100

390.9831000

Anal­y­sis wt%

SiO2 : 60.81, Al2O3 : 13.59, Fe2O3 : 3.63, MgO : 0.80, CaO : 1.54, Na2O : 1.90, K2O : 7.17, H2O : 10.57 (Ref: American Mineralogist 2009)

Strunz 9th edi­tion incl. updates

9.GD.20

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
D: Ketten von fünfer-Ringen
20:

Lapis Clas­sifica­tion

VIII/J.26-092

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

Clas­sifica­tion by Hölzel

9.FL.242

9: SILICATES
F: Tektosilicates
L: Zeolites with 6-Rings

Dana 8th edi­tion

77.01.02.05a

77: Tektosilicates Tectosilicate Zeolite group
01: Tektosilicates Tectosilicate Zeolite group true zeolites
02: Chabazite and related species

IMA sta­tus

anerkannt

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Zeolite group  ⇒ ERI zeolite structure group  ⇒ Erionite series

Optical Properties

Color

weiß, grün, grau, orange

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.003
Birefringence chart\! Erionite-K title=Birefringence chart Erionite-K

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

1.471

RI value γ / ε

1.474

2V angle

Uniaxial (+)

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6/mmm

Space Group number

194

Space Group

P63/mmc

Cell param­e­ters a (Å)

13.227

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

15.075

Cell param­e­ters a/b or c/a

1.140

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

1

Volumne (ų)

2284.077

X-Ray Pow­der Diffrac­tion

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.09 - 2.13 / Durchschnittlich = 2.11

2.216 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

USA/Oregon/Malheur Co./Rome

Preface

Addi­tional Informa­tion

Vorsicht beim Umgang! Fasern geeigneter Größe können eingeatmet werden und Krebserkrankungen verursachen.
Dumortier P., Coplü L., Broucke I., Emri S., Selcuk T., De Maertelaer V., De Vuist P., Baris I.: Erionite bodies and fibres in bronchoalveolar lavage fluid (BALF) of residents from Tuzköy, Cappadocia, Turkey. Occupational and Environmental Medicine Vol. 58 (2001) S. 261-266.

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H350: Kann Krebs erzeugen., H372: Schädigt die Organe bei längerer oder wiederholter Exposition.

References

American Mineralogist 49 (1964), 30.

Canadian Mineralogist 35 (1997), 1571.

American Mineralogist 83 (1998), 590-606.

IMA group assignments

 
Zeolite group
 
 
 

 
 
ERI zeolite structure group
 
 
 

 
 
 
Erionite series
 
 
 

 
 
 
 
Erionite-Ca
Ca5(Si,Al)36O72·28H2O
hexagonal
P63/mmc

 
 
 
 
Erionite-K
K10(Si,Al)36O72·28H2O
hexagonal
P63/mmc

 
 
 
 
Erionite-Na
Na10(Si,Al)36O72·28H2O
hexagonal
P63/mmc

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Actuality: 18. Jun 2022 - 03:59:39

Other languages

German

Erionit-K

Spanish

Erionita-K

English

Erionite-K

French

Erionite-K

Russian

Эрионит-K

Alternative Name

Erionit-(K)

CNMNC symbol

Symbol

Eri-K

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

German pages

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English pages

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American-Mineralogist-Crystal-Structure-Database - search for: Erionite-K
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Russian pages

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German pages

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Locations with GPS information