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Cornetite

Pictures (69 Images total)

Cornetit
Views (Image: 1284126537): 3476, Rating: 9.2
Cornetit

Bildbreite: 1,07 mm; Fundort: Luiswishi, Süden, Katanga (Shaba), Provinz, Demokratische Republik Kongo

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-09-10
Locality: Luiswishi / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
blaue Cornetit XX
Views (Image: 1108596930): 1072
blaue Cornetit XX

Bildbreite: 10 mm; Fundort: Star of the Congo Mine, Lubumbashi, Shaba Cu belt, Shaba, Kongo

Collection: Dominik Schläfli
Copyright: Dominik Schläfli
Contribution: Mineralienatlas 2005-02-17
Locality: L'Etoile du Congo Mine (Star Of The Congo Mine; Kalukuluku Mine) / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Cornetit
Views (Image: 1224571050): 387
Cornetit

Bildbreite: 2 mm; Fundort: L’Etoile du Congo Mine, Elisabethville, Katanga, Kongo

Copyright: Stephan Wolfsried
Contribution: Hg 2008-10-21
Locality: L'Etoile du Congo Mine (Star Of The Congo Mine; Kalukuluku Mine) / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Cornetit
Views (Image: 1224588900): 1960
Cornetit

Bildbreite: 3 mm; Fundort: L’Etoile du Congo Mine, Elisabethville, Katanga, Kongo

Copyright: Stephan Wolfsried
Contribution: Hg 2008-10-21
Locality: L'Etoile du Congo Mine (Star Of The Congo Mine; Kalukuluku Mine) / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Cornetit
Views (Image: 1436639827): 805
Cornetit (SNr: A035857)

Blockig blaue Kristalle, Bb = 4,5mm; Fundort: L'Etoile du Congo Mine (Star of the Congo Mine), Lubumbashi, Katanga Copper Crescent, Katanga, Demokratische Republik Kongo.

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2015-07-11
Locality: L'Etoile du Congo Mine (Star Of The Congo Mine; Kalukuluku Mine) / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
blaue Cornetit xx
Views (Image: 1172669682): 4841
blaue Cornetit xx

Bildbreite: 10mm; Fundort: Demokratische Republik Kongo

Collection: thothie
Copyright: thothie
Contribution: thothie 2007-02-28
Locality: Demokratische Republik Kongo

Collectors Summary

Color dunkelblau, schwarzblau
Streak color blau
Hardness (Mohs) 4.5
Solubility +++ HCl
Crystal System orthorhombisch, Pbca

Chemism

Chem­ical formula

Cu3(PO4)(OH)3

Chem­ical com­po­si­tion

Kupfer, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 336.6325122 u; Number of atoms in the formula: 14

Info

Empirical formula:

Cu3(PO4)(OH)3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.90

3

21.43

1.0079470

3.0238410

Oxygen

O

33.27

7

50.00

15.9994300

111.9960100

Phosphorus

P

9.20

1

7.14

30.9737612

30.9737612

Copper

Cu

56.63

3

21.43

63.5463000

190.6389000

Anal­y­sis wt%

CuO : 70.89, P2O5 : 21.08, H2O : 8.03 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

8.BE.15

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
E: Mit ausschließlich mittelgroßen [Kationen] (OH, etc.):RO4 > 2:1
15:Cornetit-Gruppe

Lapis Clas­sifica­tion

VII/B.13-010

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
13: Mittelgroße Kationen: Mg-Mn-Fe-Cu-Zn

Clas­sifica­tion by Hölzel

8.BD.100

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
D: Phosphates, C medium, V: 2, OH/XO4 ò 3/1

Dana 8th edi­tion

41.03.02.01

41: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
03: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen where (A B)3 (XO4) Zq

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

dunkelblau, schwarzblau

Streak color

blau

max. Birefrin­gence

0.055

Birefringence chart\! Cornetite title=Birefringence chart Cornetite

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

1.765

RI value β

1.81

RI value γ / ε

1.82

Ri mean

1.798

2V angle

Biaxial (-) 33°

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

61

Space Group

Pbca

Cell param­e­ters a (Å)

10.86

Cell param­e­ters b (Å)

14.07

Cell param­e­ters c (Å)

7.10

Cell param­e­ters a/b or c/a

0.772

Cell param­e­ters c/b

0.505

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

1084.881

X-Ray Pow­der Diffrac­tion

5.48(50),
5.07(60),
4.29(90),
3.68(70),
3.17(80),
3.04(100),
2.95(50),
2.06(70)

XRD chart Cornetite

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)

4.5

VHN (Hard­ness Vick­ers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.10 (gemessen)

4.122 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HCl

Preface

Author (Name, Year)

Buttgenbach, 1916

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H302: Gesundheitsschädlich bei Verschlucken., P264: Nach Gebrauch … gründlich waschen., P270: Bei Gebrauch nicht essen, trinken oder rauchen., P301+P312: Bei Verschlucken: Bei Unwohlsein Giftinformationszentrum, Arzt oder … anrufen., P330: Mund ausspülen., P501: Inhalt / Behälter … zuführen.

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 127

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

Cornetite

Cu3(PO4)(OH)3

orthorhombisch : mmm : Pbca

8.BE.15

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

Cornetite

Cu3(PO4)(OH)3

orthorhombisch : mmm : Pbca

VII/B.13-010

Clinoclase

Cu3(AsO4)(OH)3

monoklin : 2/m : P21/c

VII/B.13-020

Gilmarite

Cu3[(OH)3|AsO4]

triklin : 1 : P1

VII/B.13-030

Arhbarite

Cu2Mg(AsO4)(OH)3

triklin : 1 : P1

VII/B.13-040

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

Cornetite

Cu3(PO4)(OH)3

orthorhombisch : mmm : Pbca

8.BD.100

Clinoclase

Cu3(AsO4)(OH)3

monoklin : 2/m : P21/c

8.BD.110

Gilmarite

Cu3[(OH)3|AsO4]

triklin : 1 : P1

8.BD.115

Arhbarite

Cu2Mg(AsO4)(OH)3

triklin : 1 : P1

8.BD.118

Sabelliite

Cu2Zn[(OH)3|(As,Sb)O4]

trigonal : 3 : P3

8.BD.120

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

Clinoclase

Cu3(AsO4)(OH)3

monoklin : 2/m : P21/c

41.03.01.01

Gilmarite

Cu3[(OH)3|AsO4]

triklin : 1 : P1

41.03.01.02

Cornetite

Cu3(PO4)(OH)3

orthorhombisch : mmm : Pbca

41.03.02.01

Theoparacelsite

Cu3(OH)2As2O7

orthorhombisch : mmm : Pmma

41.03.02.02

Flinkite

Mn2+2Mn3+(AsO4)(OH)4

orthorhombisch : mmm : Pnma

41.03.03.01

Retzian-(Ce)

Mn2Ce(AsO4)(OH)4

orthorhombisch : mmm : Pban

41.03.04.01

Retzian-(La)

(Mn,Mg)2(La,Ce,Nd)(AsO4)(OH)4

orthorhombisch : mmm : Pban

41.03.04.03

Viitaniemiite

Na(Ca,Mn2+)Al(PO4)(F,OH)3

monoklin : 2/m : P21/m

41.03.05.01

Nacaphite

Na2Ca(PO4)F

triklin : 1 : P1

41.03.06.01

Gerdtremmelite

(Zn,Fe2+)(Al,Fe3+)2(AsO4)(OH)5

41.03.07.01

Paulkellerite

Bi2Fe3+(PO4)O2(OH)2

monoklin : 2/m : C2/c

41.03.08.01

Brendelite

(Bi3+,Pb2+)2(Fe3+,Fe2+)[O2|OH|PO4]

monoklin : 2/m : C2/m

41.03.08.02

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

German pages

DeWikiPedia - search for: Cornetit
Google-Bilder-Suche - search for: Cornetit
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English pages

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