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Wesselsite

Pictures (3 Images total)

Wesselsit
Views (Image: 1590590043): 163
Wesselsit

blaue Kristalle von Wesselsit, Wessels Mine, Hotazel, Kalahari-Manganfelder, Northern Cape, Südafrika; BB < 5 mm

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-05-27
Locality: Wessel's Mine (Wessels Mine) / Hotazel / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Wesselsit
Views (Image: 1598793499): 102
Wesselsit  E
Analysed with energy dispersive X-ray spectroscopy EDX

Wessels Mine, Südafrika. BB 0,8mm. EDX-Analyse von Joy Desor.

Copyright: Mabu
Contribution: Mabu 2020-08-30
Locality: Wessel's Mine (Wessels Mine) / Hotazel / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Wesselsit
Views (Image: 1598794083): 97
Wesselsit  E
Analysed with energy dispersive X-ray spectroscopy EDX

Wessels Mine, Südafrika. BB 2,3mm; EDX-Analyse von Joy Desor.

Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2020-08-30
Locality: Wessel's Mine (Wessels Mine) / Hotazel / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika

Collectors Summary

Color blau
Streak color blau weiß
Cleavages vollkommen {001}
Fracture nicht beobachtet
Crystal System tetragonal, P4/ncc

Chemism

Chem­ical formula

Sr0.9Ba0.1CuSi4O10

Chem­ical com­po­si­tion

Barium, Kupfer, Silicium, Strontium, Sauerstoff

Unit weight: 428.47439 u; Number of atoms in the formula: 16

Info

Empirical formula:

Sr0.9Ba0.1CuSi4O10

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

37.34

10

62.50

15.9994300

159.9943000

Silicon

Si

26.22

4

25.00

28.0855300

112.3421200

Copper

Cu

14.83

1

6.25

63.5463000

63.5463000

Strontium

Sr

18.40

0.9

5.63

87.6210000

78.8589000

Barium

Ba

3.21

0.1

0.63

137.3277000

13.7327700

Anal­y­sis wt%

Ø SrO : 24.00, CuO : 18.80, SiO2 : 56.90 (Ref: Mineralogical Magazine 96)

Strunz 9th edi­tion incl. updates

9.EA.05

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
A: Einfache Tetraedernetze mit 4-, 5-, (6-), und 8 beteiligten Ringen
05:Gillespit-Gruppe

Lapis Clas­sifica­tion

VIII/H.02-020

VIII: SILIKATE
H: Schichtsilikate
2: tetragonale oder pseudotetragonale Schichtstrukturen [Si4O10] 4- u.a.

Clas­sifica­tion by Hölzel

9.EA.215

9: SILICATES
E: Phyllosilicates
A: tetragonal & pseudotetragonal Phyllosilicates
2: Cuprorivait-Group

Dana 8th edi­tion

71.02.03.04

71: Phyllosilicate Minerals
02: Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings with 2:1 Layers
03: Cuprorivaite group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

blau

Streak color

blau weiß

Diaphane­ity (Trans­parency)

transparent

max. Birefrin­gence

0.040

Birefringence chart\! Wesselsite title=Birefringence chart Wesselsite

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

1.630

RI value γ / ε

1.590

Ri mean

1.617

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4/mmm

Space Group number

130

Space Group

P4/ncc

Cell param­e­ters a (Å)

7.366

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

15.574

Cell param­e­ters a/b or c/a

2.114

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

845.013

Kristall struc­ture

aufgeklärt, siehe Kevin S. Knight, C. Michael B. Henderson, Simon M. Clark: Structural variations in the wesselsite–effenbergerite (Sr1–xBaxCuSi4O10) solid solution. Eur J Mineral 22 (2010) S.411-423.

X-Ray Pow­der Diffrac­tion

7.79(30),
3.444(40),
3.330(100),
3.119(50),
3.033(50),
2.677(20),
2.605(30),
2.322(30)

XRD chart Wesselsite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.2

3.368 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen {001}

Frac­ture

nicht beobachtet

Tenac­ity

spröde

Preface

Author (Name, Year)

Giester & Rieck, 1996

References

Mineralogical Magazine 60 (1996), 795

Rieck, B., Pristacz, H., Giester, G. (2015): Colinowensite, BaCuSi2O6, a new mineral from the Kalahari Manganese Field, South Africa, and new data on wesselsite, SrCuSi4O10. Mineralogical Magazine, 79, (in press). [Formel]

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

Gillespite

BaFe2+Si4O10

tetragonal : 4/mmm : P4/ncc

9.EA.05

Wesselsite

Sr0.9Ba0.1CuSi4O10

tetragonal : 4/mmm : P4/ncc

9.EA.05

Cuprorivaite

CaCuSi4O10

tetragonal : 4/mmm : P4/ncc

9.EA.05

Effenbergerite

BaCu[Si4O10]

tetragonal : 4/mmm : P4/ncc

9.EA.05

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

Cuprorivaite

CaCuSi4O10

tetragonal : 4/mmm : P4/ncc

VIII/H.02-010

Wesselsite

Sr0.9Ba0.1CuSi4O10

tetragonal : 4/mmm : P4/ncc

VIII/H.02-020

Effenbergerite

BaCu[Si4O10]

tetragonal : 4/mmm : P4/ncc

VIII/H.02-030

Gillespite

BaFe2+Si4O10

tetragonal : 4/mmm : P4/ncc

VIII/H.02-040

Sanbornite

BaSi2O5

orthorhombisch : mmm : Pmcn

VIII/H.02-050

Bigcreekite

BaSi2O5·4H2O

orthorhombisch : mmm : Pnma

VIII/H.02-060

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

Cuprorivaite

CaCuSi4O10

tetragonal : 4/mmm : P4/ncc

9.EA.200

Effenbergerite

BaCu[Si4O10]

tetragonal : 4/mmm : P4/ncc

9.EA.210

Wesselsite

Sr0.9Ba0.1CuSi4O10

tetragonal : 4/mmm : P4/ncc

9.EA.215

Gillespite

BaFe2+Si4O10

tetragonal : 4/mmm : P4/ncc

9.EA.220

Hyalotekite

(Ba,Pb,Ca,K)6(B,Si,Al)2(Si,Be)10O28(F,Cl)

triklin : 1 : I1

9.EA.260

Kapitsaite-(Y)

(Ba,K,Pb2+)4(Y,Ca,Na)2[(F,OH)|I(B,Si)4O4](Si4O12)2]

triklin : 1 : I1

9.EA.270

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Talc

Mg3Si4O10(OH)2

monoklin : 2/m : C2/c

71.02.01.03

Willemseite

(Ni,Mg)3Si4O10(OH)2

monoklin : m : Cc

71.02.01.04

'Glauconite'

(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

monoklin : 2/m : C2/m

71.02.02a.05

Tobelite

(NH4,K)Al2(Si3Al)O10(OH)2

monoklin : 2/m : C2/m

71.02.02a.07

'Tetraferriannite'

KFe2+3(Si3Fe3+)O10(OH)2

monoklin : 2/m : C2/m

71.02.02b.04

Sokolovaite

CsLi2AlSi4O10F2

71.02.02b.08b

Zinkosite

ZnSO4

orthorhombisch : mmm : Pnma

71.02.02b.10

'Zinnwaldite'

KLiFe2+Al(AlSi3)O10(F,OH)2

monoklin : 2 : C2

71.02.02b.10

'Ephesite'

NaLiAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

71.02.02b.16

Clintonite

Ca(Mg,Al)3(Al3Si)O10(OH)2

monoklin : 2/m, m : C2/m, ?

71.02.02c.02

Anandite

(Ba,K)(Fe2+,Mg)3(Si,Al,Fe)4O10(S,OH)2

monoklin : 2/m : C2/c

71.02.02c.04

Oxykinoshitalite

(Ba,K)(Mg,Fe2+,Ti4+)3(Si,Al)4O10O2

monoklin : 2/m : C2/m

71.02.02c.08

Hydrobiotite

K(Mg,Fe2+)6(Si,Al)8O20(OH)4·nH2O

monoklin : 2/m : C2/m

71.02.02d.01

Cuprorivaite

CaCuSi4O10

tetragonal : 4/mmm : P4/ncc

71.02.03.01

Gillespite

BaFe2+Si4O10

tetragonal : 4/mmm : P4/ncc

71.02.03.02

Effenbergerite

BaCu[Si4O10]

tetragonal : 4/mmm : P4/ncc

71.02.03.03

Wesselsite

Sr0.9Ba0.1CuSi4O10

tetragonal : 4/mmm : P4/ncc

71.02.03.04

Ferrisurite

(Pb,Ca)2-3(Fe3+,Al)2[(OH,F)2.5-3|(CO3)1.5-2|Si4O10]·0.5 H2O

monoklin : 2, 2/m : P21, P21/m

71.02.04.01

Surite

Pb2Ca(Al,Mg)2(Si,Al)4O10(OH)2(CO3,OH)3·0.5 H2O

monoklin : 2 : P21

71.02.04.02

Niksergievite

(Ba, Ca)2Al3[(OH)6|CO3|(Si, Al)4O10]·0.2 H2O

monoklin : 2/m, 2, m : C2/m, C2, Cm

71.02.04.03

Macaulayite

(Fe3+,Al)24Si4O43(OH)2

71.02.05.01

Other languages

German

Wesselsit

Spanish

Wesselsita

French

Wesselsite

English

Wesselsite

Russian

Весселсит

IMA Number

IMA 1994-055

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

German pages

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

English pages

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

Webmineral.ru - search for: Весселсит

Mineral Dealer

German pages

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Locations with GPS information