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Aldridgeite

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Aldridgeite
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Aldridgeite

Silky needles of aldridgeite with blue niedermayrite. FOV 1mm. A Specimen, similar to this, has been analyzed by EDS and XRD; Locality: Block 14 opencut, Broken Hill, Yancowinna Co., New South Wale...

Collection: Brent Thorne
Copyright: Brent Thorne
Contribution: Stefan 2015-10-19
Locality: Block 14 Opencut / Broken Hill / Yancowinna Co. / New South Wales / Australien

Collectors Summary

Color blass blau
Streak color blass blau
Lustre Glasglanz, Seidenglanz
Hardness (Mohs) ~ 3
Fracture unregelmäßig
Crystal System monoklin, C2/c
Morphology Aldridgeite Formen Büschel aus hellblauen nadelförmigen Kristallen bis 0,8 mm Durchmesser. Einzelkristalle sind bis zu 0,4 mm lang und 0,005 mm breit.

Chemism

Chemical formula

(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6·3H2O

Empirical formula (analysis)

(Cd0.62Ca0.39)Σ1.01(Cu2.89Zn1.10)Σ3.99(SO4)2.00(OH)6·3H2O

Additional chem. information

Cd Analog von Serpierit

Chemical composition

Cadmium, Calcium, Kupfer, Zink, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 689.141713 u; Number of atoms in the formula: 36

Info

Empirical formula:

(Cd0.62Ca0.39)(Cu2.89Zn1.10)(SO4)2.00(OH)6·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.76

12

33.33

1.0079470

12.0953640

Oxygen

O

39.47

17

47.22

15.9994300

271.9903100

Sulfur

S

9.31

2

5.56

32.0655000

64.1310000

Calcium

Ca

2.27

0.39

1.08

40.0784000

15.6305760

Copper

Cu

26.65

2.89

8.03

63.5463000

183.6488070

Zinc

Zn

10.44

1.1

3.06

65.4094000

71.9503400

Cadmium

Cd

10.11

0.62

1.72

112.4118000

69.6953160

Analysis wt%

CdO : 11.70, CaO : 3.25, PbO : 0.08, CuO : 33.87, ZnO : 13.21, SO3 : 23.61 H2O (berechnet, um eine Gesamtzahl von 12 H pfu zu erhalten) : 15.94

Strunz 9th edition incl. updates

7.DD.30

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

Lapis Classification

VI/D.19-015

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
19: Mittelgroße und sehr große Kationen

Classification by Hölzel

7.DJ.120

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
J: Serpierite-Group

IMA status

anerkannt - CNMNC Newsletter, August 2010

Mineral status

anerkanntes Mineral

Optical Properties

Color

blass blau

Streak color

blass blau

Diaphaneity (Transparency)

transparent

Lustre

Glasglanz, Seidenglanz

max. Birefringence

0.047

Birefringence chart\! Aldridgeite title=Birefringence chart Aldridgeite

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

α = 1.596(3)

RI value β

β = 1.636(3)

RI value γ / ε

γ = 1.643(3)

Ri mean

1.625

2V angle

Biaxial(-) 44.5° (berechnet)

Pleochroism

Pleochroismus schwach mit X blass gelbliche blau, hellblau Y, Z blass grünlich-blau

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

22.049

Cell parameters b (Å)

6.212

Cell parameters c (Å)

21.839

Cell parameters a/b or c/a

3.549

Cell parameters c/b

3.516

Cell parameters α

90°

Cell parameters β

113.18

Cell parameters γ

90°

Z

8

Volumne (ų)

2749.777

X-Ray Powder Diffraction

10.167(100), 5.076(55), 3.380(35), 2.704(30), 2.645(60), 2.612(30), 2.439(50), 2.167(35)

XRD chart Aldridgeite

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

Morphology

Aldridgeite Formen Büschel aus hellblauen nadelförmigen Kristallen bis 0,8 mm Durchmesser. Einzelkristalle sind bis zu 0,4 mm lang und 0,005 mm breit.

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

~ 3

Density (g/cm³)

3.25 (gemessen), 3.33 (berechnet)

3.329 ( ρ calc. Mineralienatlas )

Fracture

unregelmäßig

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

Australien/New South Wales/Yancowinna Co./Broken Hill/Block 14 Opencut

Type material

Sammlung des Südaustralischen Museums, Adelaide, Südaustralien

Collection number of type material

G33030

Preface

Occurrences

Aldridgeit tritt in Hohlräumen in einer Quarz-Granat-Smithsonit Matrix zusammen mit Niedermayrit und Pyromorphit auf.

Author (Name, Year)

Elliott, P. and Pring, A. (2010)

References

Elliott, P. and Pring, A. (2010) Aldridgeite, IMA 2010-029. CNMNC Newsletter, August 2010, page 800; Mineralogical Magazine, 74, 797-800

Elliott, P. & Pring, A. (2015) Aldridgeite, a new mineral from the Block 14 Opencut, Broken Hill, New South Wales. Australian Journal of Mineralogy, 17, 67–71.

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

Aldridgeite

(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

7.DD.30

Campigliaite

Mn2+Cu4[(OH)6|(SO4)2]·4H2O

monoklin : 2 : C2

7.DD.30

Devilline

CaCu4(SO4)2(OH)6·3H2O

monoklin : 2/m : P21/c

7.DD.30

Edwardsite

Cu3Cd2(SO4)2(OH)6·4H2O

monoklin : 2/m : P21/C

7.DD.30

Lautenthalite

PbCu42+(OH)6(SO4)2·3H2O

monoklin : 2/m : P21/c

7.DD.30

Niedermayrite

CdCu4[(OH)6|(SO4)2]·4H2O

monoklin : 2/m : P21/m

7.DD.30

Orthoserpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

orthorhombisch : mm2 : Pca21

7.DD.30

Serpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

7.DD.30

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

Campigliaite

Mn2+Cu4[(OH)6|(SO4)2]·4H2O

monoklin : 2 : C2

VI/D.19-002

Edwardsite

Cu3Cd2(SO4)2(OH)6·4H2O

monoklin : 2/m : P21/C

VI/D.19-004

Niedermayrite

CdCu4[(OH)6|(SO4)2]·4H2O

monoklin : 2/m : P21/m

VI/D.19-005

Kobyashevite

Cu5(SO4)2(OH)6·4H2O

triklin : 1 : P1

VI/D.19-008

Devilline

CaCu4(SO4)2(OH)6·3H2O

monoklin : 2/m : P21/c

VI/D.19-010

Aldridgeite

(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

VI/D.19-015

Serpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

VI/D.19-020

Orthoserpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

orthorhombisch : mm2 : Pca21

VI/D.19-030

Lautenthalite

PbCu42+(OH)6(SO4)2·3H2O

monoklin : 2/m : P21/c

VI/D.19-032

'Arzrunite'

Cu4Pb2SO4O2Cl6·4H2O

VI/D.19-035

Tatarskite

Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7H2O

VI/D.19-040

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

Devilline

CaCu4(SO4)2(OH)6·3H2O

monoklin : 2/m : P21/c

7.DJ.100

Serpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

7.DJ.110

Aldridgeite

(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

7.DJ.120

Lautenthalite

PbCu42+(OH)6(SO4)2·3H2O

monoklin : 2/m : P21/c

7.DJ.140

Elyite

CuPb4O2SO4(OH)4·H2O

monoklin : 2/m : P21/c

7.DJ.150

Gordaite

NaZn4[Cl(OH)6|SO4]·6H2O

trigonal : 3 : P3

7.DJ.170

Other languages

German

Aldridgeit

English

Aldridgeite

Russian

Олдриджит

IMA Number

IMA 2010-029

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

German pages

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

English pages

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American-Mineralogist-Crystal-Structure-Database - search for: Aldridgeite
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Russian pages

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German pages

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Locations with GPS information




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