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Banalsite

Pictures (2 Images total)

Banalsit
Views (File:
1192971447
): 1859
Banalsit
Banalsit aus der Benallt Mine, Lleyn, Wales, UK
Copyright: rtbstone; Contribution: rtbstone
Collection: rtbstone
Location: UK/Wales/Conwy (Gwynedd; Caernarvonshire)/Lleyn, Halbinsel/Llanfaelrhys/Rhiw/Benallt Mine
Mineral: Banalsite
Image: 1192971447
License: Usage for Mineralienatlas project only
Banalsit

Banalsit aus der Benallt Mine, Lleyn, Wales, UK

Collection: rtbstone
Copyright: rtbstone
Contribution: rtbstone 2007-10-21
Locality: Benallt Mine / Rhiw / Llanfaelrhys / Lleyn, Halbinsel / Conwy (Gwynedd; Caernarvonshire) / Wales / UK
Banalsit
Views (File:
1197012245
): 3891
Banalsit
Brauner bis fleischfarbener Banalsit; Benallt Mine, Lleyn-Halbinsel, Wales; Größe: 5 x 6 cm
Copyright: Dan Weinrich; Contribution: Collector
Location: UK/Wales/Conwy (Gwynedd; Caernarvonshire)/Lleyn, Halbinsel/Llanfaelrhys/Rhiw/Benallt Mine
Mineral: Banalsite
Image: 1197012245
License: Usage for Mineralienatlas project only
Banalsit

Brauner bis fleischfarbener Banalsit; Benallt Mine, Lleyn-Halbinsel, Wales; Größe: 5 x 6 cm

Copyright: Dan Weinrich
Contribution: Collector 2007-12-07
Locality: Benallt Mine / Rhiw / Llanfaelrhys / Lleyn, Halbinsel / Conwy (Gwynedd; Caernarvonshire) / Wales / UK

Collectors Summary

Color weiß bis grau
Streak color weiß
Hardness (Mohs) 6
Solubility +++ HCl
Crystal System orthorhombisch, Iba2

Additional information / Summary

Siehe auch unser umfangreiches Feldspat-Portrait

Chemism

Chem­ical formula

BaNa2Al4Si4O16

Chem­ical com­po­si­tion

Aluminium, Barium, Natrium, Silicium, Sauerstoff

Unit weight: 659.5663932 u; Number of atoms in the formula: 27

Info

Empirical formula:

BaNa2Al4Si4O16

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

38.81

16

59.26

15.9994300

255.9908800

Sodium

Na

6.97

2

7.41

22.9897702

45.9795404

Aluminium

Al

16.36

4

14.81

26.9815382

107.9261528

Silicon

Si

17.03

4

14.81

28.0855300

112.3421200

Barium

Ba

20.82

1

3.70

137.3277000

137.3277000

Anal­y­sis wt%

SiO2 : 37.04, Al2O3 : 31.27, BaO : 19.19, SrO : 4.03, Na2O : 9.46 (Ref: Bull.Natl.Sci.Mus.Tokyo,85)

Strunz 9th edi­tion incl. updates

9.FA.60

9: Silikate (Germanate)
F: Gerüstsilikate (Tektosilikate) ohne zeolithisches H2O
A: Gerüstsilikate (Tektosilicates) ohne weitere [Anionen]
60:Stronalsit-Gruppe

Lapis Clas­sifica­tion

VIII/J.07-100

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
7: Ohne tetraederfremde Anionen; Feldspat-Gruppe

Clas­sifica­tion by Hölzel

9.FD.210

9: SILICATES
F: Tektosilicates
D: Plagioclase-Group

Dana 8th edi­tion

76.01.06.01

76: Tektosilicates Tectosilicate Al-Si Framework
01: Tektosilicates Tectosilicate Al-Si Framework with Al-Si frameworks
06: Banalsite group

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Feldspar group

Optical Properties

Color

weiß bis grau

Streak color

weiß

Diaphane­ity (Trans­parency)

durchscheinend bis transparent

max. Birefrin­gence

0.008

Birefringence chart\! Banalsite title=Birefringence chart Banalsite

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

1.570

RI value β

1.571

RI value γ / ε

1.578

Ri mean

1.573

2V angle

Biaxial (+) 41°

Optical Data Luminescence

Color LW-UV (365nm)

 

gelblich grün

LW-UV Obser­va­tion Frequency

sehr häufig

MW-UV (320nm)

 

gelblich grün

MW-UV Obser­va­tion Frequency

sehr häufig

Color SW-UV (254nm)

 

bläulich weiß

SW-UV Intensity

schwach

SW-UV Obser­va­tion Frequency

sehr häufig

SW-UV Other Col­ors

 

rot

Color SW-UV After­glow (254nm)

 

grün

SW-UV After­glow Obser­va­tion Frequency

sehr häufig

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mm2

Space Group number

45

Space Group

Iba2

Cell param­e­ters a (Å)

8.497

Cell param­e­ters b (Å)

9.983

Cell param­e­ters c (Å)

16.756

Cell param­e­ters a/b or c/a

0.851

Cell param­e­ters c/b

1.678

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1421.337

X-Ray Pow­der Diffrac­tion

8.5(80),
5.2(90),
4.2(60),
3.77(70),
3.53(100),
3.21(80),
2.90(80),
2.09(80)

XRD chart Banalsite

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)

6

VHN (Hard­ness Vick­ers)

730 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.065

3.082 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HCl

Preface

Rare­ness

Selten

Author (Name, Year)

Campbell Smith & Bannister & Hey, 1944

Addi­tional Informa­tion

Feldspat-Gruppe (Anorthoklas-Anorthit-Banalsit-Serie)

References

Canadian Mineralogist 44 (2006), 533

IMA group assignments

Other languages

German

Banalsit

Spanish

Banalsita

English

Banalsite

French

Banalsite

Russian

Банальсит

CNMNC symbol

Symbol

Bns

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Банальсит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Banalsit
Crystal-Treasure.com - search for: Banalsit
Bosse - search for: Banalsit
Edelsteine Neuburg - Gundolf Fischer - search for: Banalsit
Geolitho marketplace, by and for collectors - search for: Banalsit

Locations with GPS information