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Stronalsite (Stronalsit)

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Stronalsit
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Stronalsit
Weiße kristalline mm-große Putzen in grünem Jadeit; Jianchang, Landkreis Donghai, Präfektur Lianyungang, Provinz Jiangsu, China. Das Vorkommen ist zweifelhaft.
Copyright: Martins da Pedra; Contribution: Collector
Location: China/Jiangsu, Provinz/Lianyungang, Präfektur/Donghai, Kreis/Jianchang
Mineral: Stronalsite
Image: 1197977425
License: Usage for Mineralienatlas project only
Stronalsit

Weiße kristalline mm-große Putzen in grünem Jadeit; Jianchang, Landkreis Donghai, Präfektur Lianyungang, Provinz Jiangsu, China. Das Vorkommen ist zweifelhaft.
Copyright: Martins da Pedra
Contribution: Collector 2007-12-18
Locality: Jianchang / Donghai, Kreis / Lianyungang, Präfektur / Jiangsu, Provinz / China

Collectors Summary

Color weiß
Streak color weiß
Hardness (Mohs) 6.5
Crystal System orthorhombisch, Iba2

Chemism

Chemical formula

SrNa2Al4Si4O16

Chemical composition

Aluminium, Natrium, Silicium, Strontium, Sauerstoff

Unit weight: 609.8596932 u; Number of atoms in the formula: 27

Info

Empirical formula:

SrNa2Al4Si4O16

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

41.98

16

59.26

15.9994300

255.9908800
Sodium

Na

7.54

2

7.41

22.9897702

45.9795404
Aluminium

Al

17.70

4

14.81

26.9815382

107.9261528
Silicon

Si

18.42

4

14.81

28.0855300

112.3421200
Strontium

Sr

14.37

1

3.70

87.6210000

87.6210000

Analysis wt%

SiO2 : 39.13, Al2O3 : 32.70, SrO : 15.72, BaO : 2.29, Na2O : 9.99 (Ref: Min.J.Jap.87)

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.07-090

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

Classification by Hölzel

9.FD.200

9: SILICATES
F: Tektosilicates
D: Plagioclase-Group

Dana 8th edition

76.01.06.02

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

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Feldspar group

Optical Properties

Color

weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.011
Birefringence chart\! Stronalsite title=Birefringence chart Stronalsite

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

1.563

RI value β

1.564

RI value γ / ε

1.574

Ri mean

1.567

2V angle

Biaxial (+) 32°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

45

Space Group

Iba2

Cell parameters a (Å)

8.415

Cell parameters b (Å)

9.901

Cell parameters c (Å)

16.729

Cell parameters a/b or c/a

0.850

Cell parameters c/b

1.690

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

1393.809

X-Ray Powder Diffraction

3.765(40),
3.502(80),
3.204(100),
3.183(50),
3.069(40),
2.992(40),
2.881(70),
2.067(50)
XRD chart Stronalsite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

6.5

VHN (Hardness Vickers)

960 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.95

2.906 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Japan/Shikoku/Kochi, Präfektur/Kochi/Rendai/Tanaka Steinbruch

Preface

Author (Name, Year)

Hori & Nakai & Nagashima & Matsubara & Kato, 1987

Additional Information

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

References

Canadian Mineralogist 44 (2006), 533

IMA group assignments

 
Feldspar group
 
 
 

 
 
Alkali feldspar
 
 
 

 
 
 
Anorthoclase ?
(Na,K)AlSi3O8
triklin
C1

 
 
 
Buddingtonite
(NH4)AlSi3O8·0.5 H2O
monoklin
P21, P21/m

 
 
 
Celsian
BaAl2Si2O8
monoklin
I2/c

 
 
 
Hyalophane
(K,Ba)Al(Si,Al)3O8
monoklin
C2/m

 
 
 
Microcline
KAlSi3O8
triklin
C1

 
 
 
Orthoclase
KAlSi3O8
monoklin
C2/m

 
 
 
Rubicline
(Rb,K)[AlSi3O8]
triklin
P1

 
 
 
Sanidine
(K,Na)(Si,Al)4O8
monoklin
C2/m

 
 
Banalsite
BaNa2Al4Si4O16
orthorhombisch
Iba2

 
 
Dmisteinbergite
CaAl2Si2O8
hexagonal
P6/mmm

 
 
Filatovite
K[(Al,Zn)2(As,Si)2O8]
monoklin
I2/c

 
 
Kokchetavite
KAlSi3O8
hexagonal
P6/mmm

 
 
Lingunite
(Na,Ca)AlSi3O8
tetragonal
I4/m

 
 
Paracelsian
BaAl2Si2O8
monoklin
P21/a

 
 
Plagioclase
 
 
 

 
 
 
Albite
NaAlSi3O8
triklin
C1

 
 
 
Andesine
(Na,Ca)(Si,Al)4O8
triklin
P1

 
 
 
Anorthite
CaAl2Si2O8
triklin
P1

 
 
 
Bytownite
(Ca,Na)(Si,Al)4O8
triklin
I1

 
 
 
Labradorite
(Ca,Na)(Si,Al)4O8
triklin
C1

 
 
 
Oligoclase
(Na,Ca)(Si,Al)4O8
triklin
C1

 
 
Reedmergnerite
NaBSi3O8
triklin
C1

 
 
Slawsonite
(Sr,Ca)Al2Si2O8
monoklin
P21/a

 
 
Stronalsite
SrNa2Al4Si4O16
orthorhombisch
Iba2

 
 
Svyatoslavite
CaAl2Si2O8
orthorhombisch
P21212

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Actuality: 24. Mar 2023 - 14:51:07

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Stronalsit

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Stronalsite

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Стрональсит

Alternative Name

Spanish

Stronalsita

Japanese

ストロナルサイト

CNMNC (IMA)-Number

IMA 1983-016

CNMNC symbol

Symbol

Sns

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