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Ashburtonite

Pictures (3 Images total)

Ashburtonit xx
Views (File:
1155668046
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Ashburtonit xx
Etwa 0,4 mm große Kristalle auf Kluftzonen. Bildbreite etwa 38 mm. Fundort: Anticline Deposid, Ashburton Downs, Westaustralien (TL)
Copyright: Andi_Y; Contribution: Andi_Y
Location: Australien/Western Australia/Pilbara/Ashburton Downs/Anticline-Schurf
Mineral: Ashburtonite
Image: 1155668046
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Ashburtonit xx

Etwa 0,4 mm große Kristalle auf Kluftzonen. Bildbreite etwa 38 mm. Fundort: Anticline Deposid, Ashburton Downs, Westaustralien (TL)
Copyright: Andi_Y
Contribution: Andi_Y 2006-08-15
Locality: Anticline-Schurf / Ashburton Downs / Pilbara / Western Australia / Australien
Ashburtonit
Views (File:
1077033348
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Ashburtonit
Blaue Krusten aus winzigen prismatischen Ashburtonit-Kristallen mit Beudantit-xx; Fundort: Anticline Prospect (Claim 84), Ashburton Downs, Capricorne Range, West-Australien; Größe Kristallpartie bis 2,3 cm
Copyright: McSchuerf; Contribution: Mineralienatlas
Location: Australien/Western Australia/Pilbara/Ashburton Downs/Anticline-Schurf
Mineral: Ashburtonite
Image: 1077033348
Rating: 5 (votes: 2)
License: Usage for Mineralienatlas project only
Ashburtonit

Blaue Krusten aus winzigen prismatischen Ashburtonit-Kristallen mit Beudantit-xx; Fundort: Anticline Prospect (Claim 84), Ashburton Downs, Capricorne Range, West-Australien; Größe Kristallpartie bi...
Copyright: McSchuerf
Contribution: Mineralienatlas 2004-02-17
Locality: Anticline-Schurf / Ashburton Downs / Pilbara / Western Australia / Australien
Ashburtonit
Views (File:
1262913988
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Ashburtonit
Größe: 40x25 mm; Fundort: Ashburton Downs, Pilbara, Western Australia, Australien
Copyright: Paul Bongaerts; Contribution: Philip Blümner
Location: Australien/Western Australia/Pilbara/Ashburton Downs
Mineral: Ashburtonite
Image: 1262913988
Rating: 4.5 (votes: 2)
License: Usage for Mineralienatlas project only
Ashburtonit

Größe: 40x25 mm; Fundort: Ashburton Downs, Pilbara, Western Australia, Australien
Copyright: Paul Bongaerts
Contribution: Philip Blümner 2010-01-08
Locality: Ashburton Downs / Pilbara / Western Australia / Australien

Collectors Summary

Color blau
Streak color hellblau
Lustre Glasglanz
Hardness (Mohs) -
Cleavages keine wahrnehmbar
Fracture muschelig
Solubility +++ konz. HCl, ++ 0.2M HCl, HNO3 1:1, konz. H2SO4
Crystal System tetragonal, I4/m
Morphology Krusten aus winzigen, prismatischen Kristallen bis 0,4 mm

Chemism

Chemical formula

HPb4Cu42+Si4O12(HCO3)4(OH)4Cl

Chemical composition

Blei, Chlor, Kupfer, Silicium, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 1735.919203 u; Number of atoms in the formula: 54

Info

Empirical formula:

HPb4Cu4Si4O12(HCO3)4(OH)4Cl

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.52

9

16.67

1.0079470

9.0715230
Carbon

C

2.77

4

7.41

12.0107800

48.0431200
Oxygen

O

25.81

28

51.85

15.9994300

447.9840400
Silicon

Si

6.47

4

7.41

28.0855300

112.3421200
Chlorine

Cl

2.04

1

1.85

35.4532000

35.4532000
Copper

Cu

14.64

4

7.41

63.5463000

254.1852000
Lead

Pb

47.75

4

7.41

207.2100000

828.8400000

Analysis wt%

PbO : 52.17, CuO : 18.66, SiO2 : 14.07, Cl : 2.28, CO2 : 10.31, H2O : 4.22 (Ref: American Mineralogist 91)

Strunz 9th edition incl. updates

9.CF.05

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
F: ~[Si4O12]8- vierer-Einfachringe, ohne inselart, komplexe [Anionen]
05:Ashburtonit-Gruppe

Lapis Classification

VIII/E.06-060

VIII: SILIKATE
E: Ringsilikate
6: Viererringe [Si4O12] 8-

Classification by Hölzel

9.CB.150

9: SILICATES
C: Cyclosilicates
B: ~[Si4O12]8-, ~[Si4O10]4--Rings
1: Papagoite-Group

Dana 8th edition

78.04.02.01

78: Unclassified Silicate Minerals
04: Unclassified silicates possible inosilicates

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blau

Streak color

hellblau

Lustre

Glasglanz

max. Birefringence

0.014
Birefringence chart\! Ashburtonite title=Birefringence chart Ashburtonite

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

1.786

RI value γ / ε

1.800

Ri mean

1.791

2V angle

Uniaxial (+)

Crystallography

Crystal System

tetragonal

Class (H-M)

4/m

Space Group number

87

Space Group

I4/m

Cell parameters a (Å)

14.234

Cell parameters b (Å)

-

Cell parameters c (Å)

6.103

Cell parameters a/b or c/a

0.429

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

1236.509

X-Ray Powder Diffraction

10.2(100),
5.644(70),
4.495(100),
3.333(100),
3.013(90),
2.805(30),
2.611(50),
2.010(30)
XRD chart Ashburtonite

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

Morphology

Krusten aus winzigen, prismatischen Kristallen bis 0,4 mm

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

-

Density (g/cm³)

4.69 (berechnet)

4.662 ( ρ calc. Mineralienatlas )

Cleavages

keine wahrnehmbar

Fracture

muschelig

Tenacity

sehr spröde

Instability

+++ konz. HCl, ++ 0.2M HCl, HNO3 1:1, konz. H2SO4

(Co-)Type locality

(Co-)Type locality

Australien/Western Australia/Pilbara/Ashburton Downs/Anticline-Schurf

Preface

Occurrences

in der Oxidationszone

Associations

Beudantit-xx

Rareness

sehr selten (++)

Author (Name, Year)

Grice & Nickel & Gault, 1991

Relevance, Usage

für Sammlerzwecke

Collector information

schwer zu bekommen, nicht billig

References

American Mineralogist 76 (1991), 1701

Other languages

German

Ashburtonit

Spanish

Ashburtonita

French

Ashburtonite

English

Ashburtonite

Russian

Ашбуртонит

CNMNC (IMA)-Number

IMA 1990-033

CNMNC symbol

Symbol

Ahb

Locations with GPS information

IDs

GUSID (Global unique identifier short form) LxVyYfv1hEW5JIxS77JEAQ
GUID (Global unique identifier) 6172152F-F5FB-4584-B924-8C52EFB24401
Database ID 223