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Bytownite (Bytownit)

Pictures (5 Images total)

Bytownit
Views (Image: 1267179502): 2685
Bytownit

Größe: 21x19 mm; Fundort: Santiago de Papasquiaro, Municipio Santiago Papasquiaro, Durango, Mexiko

Copyright: John Sobolewski
Contribution: slugslayer 2010-02-26
Locality: Santiago Papasquiaro / Santiago Papasquiaro, Municipio / Durango / Mexiko
Bytownit
Views (Image: 1140092158): 2736
Bytownit

abgerollter trikliner Kristall; Größe 2,5 x 3 cm; Fundort: Santiago de Papasquiaro, Durango, Mexiko

Collection: Collector
Copyright: Collector
Contribution: slugslayer 2006-02-16
Locality: Santiago Papasquiaro / Santiago Papasquiaro, Municipio / Durango / Mexiko
Bytownit als Schmuckstein verschliffen
Views (Image: 1140092212): 2589
Bytownit als Schmuckstein verschliffen

Gewicht 48 Karat; Fundort: Santiago de Papasquiaro, Durango, Mexiko

Collection: Collector
Copyright: Collector
Contribution: slugslayer 2006-02-16
Locality: Santiago Papasquiaro / Santiago Papasquiaro, Municipio / Durango / Mexiko
Bytownit
Views (Image: 1267179624): 2177
Bytownit

Größe: 25x20 mm; Fundort: Santiago de Papasquiaro, Municipio Santiago Papasquiaro, Durango, Mexiko

Copyright: John Sobolewski
Contribution: slugslayer 2010-02-26
Locality: Santiago Papasquiaro / Santiago Papasquiaro, Municipio / Durango / Mexiko
Bytownit
Views (Image: 1344002684): 1277
Bytownit (SNr: A00039)

FO: Nördlinger Ries bei Bopfingen, grauer, krustiger Belag, BB: 8 mm,

Collection: Lithothek der Münchener Micromounter
Copyright: Manfred Früchtl
Contribution: Münchener Micromounter 2012-08-03
Locality: Bopfingen / Nördlinger Ries / Ostalbkreis / Stuttgart, Bezirk / Baden-Württemberg / Deutschland

Collectors Summary

Color farblos, grau, weiß, gelblich, goldgelb
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 6.25
Solubility +++ HF, +HCl
Crystal System triklin, I1

Additional information / Summary

Siehe auch unser umfangreiches Feldspat Portrait

Chemism

Chemical formula

(Ca,Na)(Si,Al)4O8

Additional chem. information

Plagioklas Feldspat mit Albit:Anorthit Molmasse-Verhältis von 10:90 bis 30:70

Chemical composition

Aluminium, Calcium, Natrium, Silicium, Sauerstoff

Unit weight: 275.03981075 u; Number of atoms in the formula: 13

Info

Empirical formula:

(Ca0.75Na0.25)(Si0.75Al0.25)4O8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

46.54

8

61.54

15.9994300

127.9954400

Sodium

Na

2.09

0.25

1.92

22.9897702

5.7474426

Aluminium

Al

9.81

1

7.69

26.9815382

26.9815382

Silicon

Si

30.63

3

23.08

28.0855300

84.2565900

Calcium

Ca

10.93

0.75

5.77

40.0784000

30.0588000

Analysis wt%

SiO2 : 47.67, Al2O3 : 33.46, CaO : 16.23, Na2O : 2.19 (Ref: Rock Forming Minerals 63)

Strunz 9th edition incl. updates

9.FA.35

9: Silikate (Germanate)
F: Gerüstsilikate (Tektosilikate) ohne zeolithisches H2O
A: Gerüstsilikate (Tektosilicates) ohne weitere [Anionen]
35:Feldspat: Plagioklas

Lapis Classification

VIII/J.07-060

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

Classification by Hölzel

9.FD.113

9: SILICATES
F: Tektosilicates
D: Plagioclase-Group

IMA status

Zwischenglied zweier anerkannter Mineralien

Mineral status

Gemenge/Gemisch/Mischkristall

Variety / polytype of

Anorthite

Optical Properties

Color

farblos, grau, weiß, gelblich, goldgelb

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend bis transparent

Lustre

Glasglanz

max. Birefringence

0.009

Birefringence chart\! Bytownite title=Birefringence chart Bytownite

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

1.561

RI value β

1.565

RI value γ / ε

1.570

Ri mean

1.565

2V angle

Biaxial (-) 86°

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

I1

Cell parameters a (Å)

8.178

Cell parameters b (Å)

12.870

Cell parameters c (Å)

14.187

Cell parameters a/b or c/a

0.635

Cell parameters c/b

1.102

Cell parameters α

93.50

Cell parameters β

115.90

Cell parameters γ

90.63

Z

8

Volumne (ų)

1339.529

X-Ray Powder Diffraction

4.032(80),
3.747(80),
3.624(70),
3.357(50),
3.196(100),
3.165(80),
2.945(70),
2.516(70)

XRD chart Bytownite

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)

6.25

VHN (Hardness Vickers)

850 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.7 - 2.72 / Durchschnittlich = 2.71

2.727 ( ρ calc. Mineralienatlas )

Instability

+++ HF, +HCl

(Co-)Type locality

(Co-)Type locality

Kanada/Ontario/Ottawa (Bytown), Stadt

Preface

Occurrences

Magmatische und metamorphe Gesteine

Author (Name, Year)

Thomson, 1836

Relevance, Usage

Schmuckstein

Collector information

Exzellente goldgelbe, tw. als triklin erkennbare Kristalle und Kristallaggregate (selten auch Zwillinge) bis mehrere cm aus Durango, Mexiko (tw. abgerollt, aber auch mit erkennbaren Flächen)

Additional Information

Feldspatgruppe, keine gültige Mineralspezies, nicht IMA-anerkannt. Isomorphe Mischung Anorthoklas-Anorthit-Banalsit-Plagioklas-Serie

References

Rock-forming Minerals (Deer, Howie & Zussmann), 2nd ed., 4A (2001)

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Albite

NaAlSi3O8

triklin : 1 : C1

9.FA.35

'Andesine'

(Na,Ca)(Si,Al)4O8

triklin : 1 : P1

9.FA.35

Anorthite

CaAl2Si2O8

triklin : 1 : P1

9.FA.35

'Bytownite'

(Ca,Na)(Si,Al)4O8

triklin : 1 : I1

9.FA.35

'Labradorite'

(Ca,Na)(Si,Al)4O8

triklin : 1 : C1

9.FA.35

Lingunite

(Na,Ca)AlSi3O8

tetragonal : 4/m : I4/m

9.FA.35

'Oligoclase'

(Na,Ca)(Si,Al)4O8

triklin : 1 : C1

9.FA.35

'Plagioclase'

9.FA.35

Reedmergnerite

NaBSi3O8

triklin : 1 : C1

9.FA.35

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

'Anorthoclase'

(Na,K)AlSi3O8

triklin : 1 : C1

VIII/J.07-010

Albite

NaAlSi3O8

triklin : 1 : C1

VIII/J.07-020

'Oligoclase'

(Na,Ca)(Si,Al)4O8

triklin : 1 : C1

VIII/J.07-030

'Andesine'

(Na,Ca)(Si,Al)4O8

triklin : 1 : P1

VIII/J.07-040

'Labradorite'

(Ca,Na)(Si,Al)4O8

triklin : 1 : C1

VIII/J.07-050

'Bytownite'

(Ca,Na)(Si,Al)4O8

triklin : 1 : I1

VIII/J.07-060

Anorthite

CaAl2Si2O8

triklin : 1 : P1

VIII/J.07-070

Dmisteinbergite

CaAl2Si2O8

hexagonal : 6/mmm : P6/mmm

VIII/J.07-075

Lingunite

(Na,Ca)AlSi3O8

tetragonal : 4/m : I4/m

VIII/J.07-078

Kumdykolite

NaAlSi3O8

orthorhombisch : mm2 oder mmm : P2nn oder Pmnn

VIII/J.07-079

Svyatoslavite

CaAl2Si2O8

orthorhombisch : 222 : P21212

VIII/J.07-080

Stronalsite

SrNa2Al4Si4O16

orthorhombisch : mm2 : Iba2

VIII/J.07-090

Banalsite

BaNa2Al4Si4O16

orthorhombisch : mm2 : Iba2

VIII/J.07-100

Filatovite

K[(Al,Zn)2(As,Si)2O8]

monoklin : 2/m : I2/c

VIII/J.07-110

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Albite

NaAlSi3O8

triklin : 1 : C1

9.FD.100

'Oligoclase'

(Na,Ca)(Si,Al)4O8

triklin : 1 : C1

9.FD.110

'Andesine'

(Na,Ca)(Si,Al)4O8

triklin : 1 : P1

9.FD.111

'Labradorite'

(Ca,Na)(Si,Al)4O8

triklin : 1 : C1

9.FD.112

'Bytownite'

(Ca,Na)(Si,Al)4O8

triklin : 1 : I1

9.FD.113

Anorthite

CaAl2Si2O8

triklin : 1 : P1

9.FD.120

Kumdykolite

NaAlSi3O8

orthorhombisch : mm2 oder mmm : P2nn oder Pmnn

9.FD.160

Other languages

Lithuanian

Bitovnitas

Dutch

Bytowniet

German

Bytownit

Spanish

Bytownita

English

Bytownite

French

Bytownite

Estonian

Bütauniit

Russian

Битовнит

Serbian (Cyrillic Script)

Битовнит

Hebrew

בייטאוניט

Alternative Name

Simplified Chinese

倍长石

Simplified Chinese

培长石

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

German pages

DeWikiPedia - search for: Bytownit
Google-Bilder-Suche - search for: Bytownit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Bytownit

English pages

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

Russian pages

Webmineral.ru - search for: Битовнит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Bytownit
Crystal-Treasure.com - search for: Bytownit
Bosse - search for: Bytownit

Locations with GPS information




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