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Bechererite

Pictures (2 Images total)

Bechererit
Views (Image: 1217204504): 1927
Bechererit

Bildbreite: 6 mm; Fundort: South Mine, Broken Hill, NSW, Australien
Copyright: Leonardus
Contribution: slugslayer 2008-07-28
Locality: Broken Hill South Mine (BHS Mine) / Broken Hill / Yancowinna Co. / New South Wales / Australien
feinnadelige goldbraune Bechererite (EDX analysiert)
Views (Image: 1583940814): 116
feinnadelige goldbraune Bechererite (EDX analysiert) (SNr: A042706)

Deutschland/Rheinland-Pfalz/Rhein-Lahn-Kreis/Bad Ems/Grube Friedrichssegen, BB = 1,0 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2020-03-11
Locality: Grube Friedrichssegen / Bad Ems / Rhein-Lahn-Kreis / Rheinland-Pfalz / Deutschland

Collectors Summary

Color hellgrün
Streak color weiß
Hardness (Mohs) 2.5
Cleavages {001} vollkommen
Solubility +++ Säuren
Crystal System trigonal, P3, P3

Chemism

Chem­ical formula

Zn7Cu[(OH)13|SiO(OH)3|SO4]

Chem­ical com­po­si­tion

Kupfer, Silicium, Zink, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 933.678312 u; Number of atoms in the formula: 47

Info

Empirical formula:

Zn7Cu[(OH)13SiO(OH)3SO4]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.73

16

34.04

1.0079470

16.1271520
Oxygen

O

35.99

21

44.68

15.9994300

335.9880300
Silicon

Si

3.01

1

2.13

28.0855300

28.0855300
Sulfur

S

3.43

1

2.13

32.0655000

32.0655000
Copper

Cu

6.81

1

2.13

63.5463000

63.5463000
Zinc

Zn

49.04

7

14.89

65.4094000

457.8658000

Strunz 9th edi­tion incl. updates

7.DD.55

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
D: mit mittelgroßen Kationen; Lagen von kantenverknüpften Oktaedern
55:Bechererit-Gruppe

Lapis Clas­sifica­tion

VI/D.08-005

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
8: Mittelgroße Kationen

Clas­sifica­tion by Hölzel

7.DD.210

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
D: Sulfate-Hydrotalcites

Dana 8th edi­tion

31.01.06.02

31: Hydrated Sulfates Containing Hydroxyl or Halogen
01: Hydrated Sulfates Containing Hydroxyl or Halogen where (A+ B++)m (XO4)p Zq·x(H2O), where m:p>6:1
06: Schulenbergite group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

hellgrün

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent

max. Birefrin­gence

0.094
Birefringence chart\! Bechererite title=Birefringence chart Bechererite

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

1.705

RI value γ / ε

1.611

Ri mean

1.674

2V angle

Uniaxial (-)

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3, 3

Space Group number

143, 147

Space Group

P3, P3

Cell param­e­ters a (Å)

8.319

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

7.377

Cell param­e­ters a/b or c/a

0.887

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

1

Volumne (ų)

442.133

X-Ray Pow­der Diffrac­tion

7.37(100),
4.158(10),
3.623(20),
3.282(30),
2.724(30),
2.556(50),
2.191(10),
1.572(20)
XRD chart Bechererite

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)

2.5

Density (g/cm³)

3.45 - 3.49 / Durchschnittlich = 3.47

3.506 ( ρ calc. Mineralienatlas )

Cleav­ages

{001} vollkommen

Insta­bil­ity

+++ Säuren

(Co-)Type locality

(Co-)Type locality

USA/Arizona/Maricopa Co./Belmont Mountain/Tonopah-Belmont Mine

Preface

Author (Name, Year)

Giester & Rieck, 1996

References

American Mineralogist 81 (1996), 244

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

Bechererite

Zn7Cu[(OH)13|SiO(OH)3|SO4]

trigonal : 3, 3 : P3, P3

7.DD.55

Hodgesmithite

(Cu,Zn)6Zn(SO4)2(OH)10·3H2O

trigonal : 3 : P3

7.DD.55

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

Bechererite

Zn7Cu[(OH)13|SiO(OH)3|SO4]

trigonal : 3, 3 : P3, P3

VI/D.08-005

Spangolite

Cu6Al(SO4)(OH)12Cl·3H2O

trigonal : 3m : P31c

VI/D.08-010

Cyanotrichite

Cu4Al2(SO4)(OH)12·2H2O

monoklin : 2/m : C2/m

VI/D.08-020

Carbonatecyanotrichite

Cu42+Al2(CO3,SO4)(OH)12·2H2O

VI/D.08-030

Camérolaite

Cu4Al2[HSbO4,SO4]OH10(CO3)·2H2O

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

VI/D.08-035

Woodwardite

(Cu0.75Al0.25)(SO4)0.125(OH)2·0.3H2O

VI/D.08-040

Hydrowoodwardite

(Cu1-xAlx)(SO4)x/2(OH)2·nH2O {x<0.5}{n>3x/2}

trigonal : 3m : R3m

VI/D.08-042

'Zincowoodwardite'

VI/D.08-045

Chalcoalumite

CuAl4(SO4)(OH)12·3H2O

monoklin : 2 : P21

VI/D.08-050

Kyrgyzstanite

ZnAl4(SO4)(OH)12·3H2O

VI/D.08-055

'Nickelalumite'

(Ni,Cu)Al4[(SO4),(NO3)2](OH)12·3H2O

monoklin : 2/m : P21/n

VI/D.08-060

Mbobomkulite

(Ni,Cu)Al4[(NO3)2,(SO4)](OH)12·3H2O

VI/D.08-070

Hydrombobomkulite

(Ni,Cu)Al4[(NO3)2,(SO4)](OH)12·13-14H2O

VI/D.08-080

Carrboydite

(Ni,Al)9(SO4)2(OH)18·10H2O

VI/D.08-090

'Zincaluminite'

Zn6Al6(SO4)2(OH)26·5H2O

VI/D.08-100

Glaucocerinite

(Zn1-xAlx)(SO4)x/2(OH)2·nH2O {x<0.5}{n>3x/2}

VI/D.08-110

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

Spangolite

Cu6Al(SO4)(OH)12Cl·3H2O

trigonal : 3m : P31c

7.DD.200

Bechererite

Zn7Cu[(OH)13|SiO(OH)3|SO4]

trigonal : 3, 3 : P3, P3

7.DD.210

Glaucocerinite

(Zn1-xAlx)(SO4)x/2(OH)2·nH2O {x<0.5}{n>3x/2}

7.DD.230

Hydrowoodwardite

(Cu1-xAlx)(SO4)x/2(OH)2·nH2O {x<0.5}{n>3x/2}

trigonal : 3m : R3m

7.DD.235

'Natroglaucocerinite'

NaZn5Al3[(OH)16|(SO4)2]·6H2O

trigonal : 3 : P3

7.DD.240

Zincowoodwardit-1R

[Zn1-xAlx(OH)2][(SO4)x/2·nH2O] {x = 0.32-0.50}

7.DD.250

'Zincowoodwardite-3R'

[Zn1-xAlx(OH)2][(SO4)x/2·nH2O {x=0.32-0.50}

trigonal : 3 : R3

7.DD.255

Shigaite

NaMn62+Al3[(OH)18|(SO4)2]·12H2O

trigonal : 3 : R3

7.DD.270

Nikischerite

NaFe62+Al3[(OH)18|(SO4)2]·12H2O

trigonal : 3 : R3

7.DD.275

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

Connellite

Cu36(SO4)(OH)62Cl8·6H2O

hexagonal : 6/mmm : P63/mmc

 31.01.01.01

Mooreite

(Mg,Zn,Mn)15(SO4)2(OH)26·8H2O

monoklin : 2/m : P21/a

 31.01.03.01

Torreyite

(Mg,Mn)9Zn4(SO4)2(OH)22·8H2O

monoklin : 2/m : P21/a

 31.01.04.01

Lawsonbauerite

(Mn,Mg)9Zn4(SO4)2(OH)22·8H2O

monoklin : 2/m : P21/c

 31.01.04.02

Spangolite

Cu6Al(SO4)(OH)12Cl·3H2O

trigonal : 3m : P31c

 31.01.05.01

Bechererite

Zn7Cu[(OH)13|SiO(OH)3|SO4]

trigonal : 3, 3 : P3, P3

 31.01.06.02

Pseudojohannite

Cu6.5(UO2)8O8(SO4)4(OH)5·25H2O

triklin : 1 : P1

 31.01.07.01

Other languages

German

Bechererit

Spanish

Bechererita

English

Bechererite

French

Bechererite

Russian

Бехерерит

IMA Number

IMA 1994-005

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

German pages

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English pages

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Russian pages

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