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Barrerite

Pictures (13 Images total)

Barrerit
Views (File:
1214512401
): 3399, Rating: 8
Barrerit
Größe: 74x45 mm; Fundort: Kuiu Island, Alaska, USA
Copyright: Sandro Maggia; Contribution: Philip Blümner
Location: USA/Alaska/Wrangell-Petersburg Borough/Kuiu Island
Mineral: Barrerite
Image: 1214512401
Rating: 8 (votes: 4)
License: Usage for Mineralienatlas project only
Barrerit

Größe: 74x45 mm; Fundort: Kuiu Island, Alaska, USA
Copyright: Sandro Maggia
Contribution: Philip Blümner 2008-06-26
Locality: Kuiu Island / Wrangell-Petersburg Borough / Alaska / USA
Barrerit
Views (File:
1311183637
): 1133
Barrerit
Kristallgröße: 6 mm; Fundort: Rocky Pass, Kuiu Island, Wrangell-Petersburg Borough, Alaska, USA
Copyright: Matteo Chinellato; Contribution: Philip Blümner
Location: USA/Alaska/Wrangell-Petersburg Borough/Kuiu Island/Rocky Pass
Mineral: Barrerite
Image: 1311183637
Rating: 8 (votes: 3)
License: Usage for Mineralienatlas project only
Barrerit

Kristallgröße: 6 mm; Fundort: Rocky Pass, Kuiu Island, Wrangell-Petersburg Borough, Alaska, USA
Copyright: Matteo Chinellato
Contribution: Philip Blümner 2011-07-20
Locality: Rocky Pass / Kuiu Island / Wrangell-Petersburg Borough / Alaska / USA
Barrerit
Views (File:
1311183762
): 1145
Barrerit
Größe: 61x58x24 mm; Fundort: Rocky Pass, Kuiu Island, Wrangell-Petersburg Borough, Alaska, USA
Copyright: Rob Lavinsky; Contribution: Philip Blümner
Location: USA/Alaska/Wrangell-Petersburg Borough/Kuiu Island/Rocky Pass
Mineral: Barrerite
Image: 1311183762
Rating: 7.67 (votes: 3)
License: Usage for Mineralienatlas project only
Barrerit

Größe: 61x58x24 mm; Fundort: Rocky Pass, Kuiu Island, Wrangell-Petersburg Borough, Alaska, USA
Copyright: Rob Lavinsky
Contribution: Philip Blümner 2011-07-20
Locality: Rocky Pass / Kuiu Island / Wrangell-Petersburg Borough / Alaska / USA
Barrerit
Views (File:
1311183737
): 400
Barrerit
Größe: 44x34x31 mm; Fundort: Rocky Pass, Kuiu Island, Wrangell-Petersburg Borough, Alaska, USA
Copyright: Rob Lavinsky; Contribution: Philip Blümner
Location: USA/Alaska/Wrangell-Petersburg Borough/Kuiu Island/Rocky Pass
Mineral: Barrerite
Image: 1311183737
Rating: 7 (votes: 2)
License: Usage for Mineralienatlas project only
Barrerit

Größe: 44x34x31 mm; Fundort: Rocky Pass, Kuiu Island, Wrangell-Petersburg Borough, Alaska, USA
Copyright: Rob Lavinsky
Contribution: Philip Blümner 2011-07-20
Locality: Rocky Pass / Kuiu Island / Wrangell-Petersburg Borough / Alaska / USA
Barrerit
Views (File:
1217200813
): 1250
Barrerit
Größe: 90x40 mm; Fundort: Rocky Pass, Kuiu Island, Wrangell-Petersburg Borough, Alaska, USA
Copyright: Leonardus; Contribution: Philip Blümner
Location: USA/Alaska/Wrangell-Petersburg Borough/Kuiu Island/Rocky Pass
Mineral: Barrerite
Image: 1217200813
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Barrerit

Größe: 90x40 mm; Fundort: Rocky Pass, Kuiu Island, Wrangell-Petersburg Borough, Alaska, USA
Copyright: Leonardus
Contribution: Philip Blümner 2008-07-27
Locality: Rocky Pass / Kuiu Island / Wrangell-Petersburg Borough / Alaska / USA

Collectors Summary

Color weiß, rosa
Streak color weiß
Hardness (Mohs) 3.75
Solubility +++ Säuren
Crystal System orthorhombisch, Amma

Additional information / Summary

Beachten Sie bitte auch das Mineralienportrait Zeolithe - Barrerrit

Chemism

Chemical formula

(Na,K,Ca)8(Si,Al)36O72·26H2O

Chemical composition

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

Unit weight: 2857.75009876 u; Number of atoms in the formula: 194

Info

Empirical formula:

(Na0.6K0.3Ca0.1)8(Si0.75Al0.25)36O72·26H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.83

52

26.80

1.0079470

52.4132440
Oxygen

O

54.87

98

50.52

15.9994300

1,567.9441400
Sodium

Na

3.86

4.8

2.47

22.9897702

110.3508970
Aluminium

Al

8.50

9

4.64

26.9815382

242.8338438
Silicon

Si

26.54

27

13.92

28.0855300

758.3093100
Potassium

K

3.28

2.4

1.24

39.0983100

93.8359440
Calcium

Ca

1.12

0.8

0.41

40.0784000

32.0627200

Analysis wt%

SiO2 : 58.82, Al2O3 : 14.75, CaO : 1.66, Na2O : 5.97, K2O : 1.76, H2O : 16.40 (Ref: Mineralogical Magazine 75)

Strunz 9th edition incl. updates

9.GE.15

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
E: Tafeln mit 4-4-1-1 Struktureinheiten
15:Stellerit-Gruppe

Lapis Classification

VIII/J.23-040

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
23: Zeolith-Gruppe; Blätterzeolithe

Classification by Hölzel

9.FN.120

9: SILICATES
F: Tektosilicates
N: Heulandite-Group

Dana 8th edition

77.01.04.05

77: Tektosilicates Tectosilicate Zeolite group
01: Tektosilicates Tectosilicate Zeolite group true zeolites
04: Heulandite and related species

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Zeolite group  ⇒ STI zeolite structure group

Optical Properties

Color

weiß, rosa

Streak color

weiß

Diaphaneity (Transparency)

opak bis durchscheinend

max. Birefringence

0.010
Birefringence chart\! Barrerite title=Birefringence chart Barrerite

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

1.479

RI value β

1.485

RI value γ / ε

1.489

Ri mean

1.484

2V angle

Biaxial (-) 78°

Optical Data Luminescence

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

63

Space Group

Amma

Cell parameters a (Å)

13.643

Cell parameters b (Å)

18.200

Cell parameters c (Å)

17.842

Cell parameters a/b or c/a

0.750

Cell parameters c/b

0.980

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

4430.215

X-Ray Powder Diffraction

9.10(100),
4.659(20),
4.054(100),
3.189(20),
3.028(80),
3.004(20),
2.773(20),
1.819(20)
XRD chart Barrerite

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)

3.75

VHN (Hardness Vickers)

160 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.13

2.142 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Italien/Sardinien (Sardegna), Region/Cagliari, Metropolitanstadt/Pula/Margherita di Pula/Nora Pila

Preface

Author (Name, Year)

Passaglia & Pongiluppi, 1974

References

Mineralogical Magazine 40 (1975), 208

IMA group assignments

 
Zeolite group
 
 
 

 
 
STI zeolite structure group
 
 
 

 
 
 
Barrerite
(Na,K,Ca)8(Si,Al)36O72·26H2O
orthorhombisch
Amma

 
 
 
Stellerite
Ca4(Si28Al8)O72·28H2O
orthorhombisch
Fmmm

 
 
 
Stilbite series
 
 
 

 
 
 
 
Stilbite-Ca
(Ca0.5,Na,K)9(Si,Al)36O72·28H2O
monoklin
C2/m

 
 
 
 
Stilbite-Na
Na9(Si27Al9)O72·28H2O
monoklin
C2/m

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Actuality: 12. Sep 2024 - 08:00:27

Other languages

German

Barrerit

Spanish

Barrerita

English

Barrerite

French

Barrerite

Russian

Баррерит

Simplified Chinese

板沸石

CNMNC symbol

Symbol

Bre

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Yr7H9ndiKkWDmlhR25b7bA
GUID (Global unique identifier) F6C7BE62-6277-452A-839A-5851DB96FB6C
Database ID 300