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Cyanotrichite

Pictures (102 Images total)

Cyanotrichit
Views (Image: 1284021662): 4002, Rating: 9.67
Cyanotrichit

Größe: 1,96 mm; Fundort: Dachang Mine, Verwaltungsbezirk Qinglong (Liancheng), Provinz Guizhou, China

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-09-09
Locality: Qinglong Mine (Dachang Mine) / Dachang Sb-Erzfeld / Qinglong, Kreis / Qianxinan, autonomer Bezirk / Guizhou, Provinz / China
Cyanotrichit
Views (Image: 1317635347): 3659, Rating: 9.6
Cyanotrichit

Größe: 3,87 mm; Fundort: Madonna di Fucinaia, Campiglia Marittima, Provinz Livorno, Toskana, Italien

Copyright: Matteo Chinellato
Contribution: Hg 2011-10-03
Locality: Madonna di Fucinaia / Campiglia Marittima / Livorno, Provinz / Toskana (Toscana) / Italien
Cyanotrichit mit Spangolith
Views (Image: 1317715890): 2399, Rating: 9.6
Cyanotrichit mit Spangolith

Größe: 2,28 mm; Fundort: Madonna di Fucinaia, Campiglia Marittima, Provinz Livorno, Toskana, Italien

Copyright: Matteo Chinellato
Contribution: Hg 2011-10-04
Locality: Madonna di Fucinaia / Campiglia Marittima / Livorno, Provinz / Toskana (Toscana) / Italien
Cyanotrichit
Views (Image: 1317635392): 2924, Rating: 9.75
Cyanotrichit

Größe: 4,98 mm; Fundort: Madonna di Fucinaia, Campiglia Marittima, Provinz Livorno, Toskana, Italien

Copyright: Matteo Chinellato
Contribution: Hg 2011-10-03
Locality: Madonna di Fucinaia / Campiglia Marittima / Livorno, Provinz / Toskana (Toscana) / Italien
Cyanotrichit
Views (Image: 1131386260): 950, Rating: 8.5
Cyanotrichit

Fundort: Lavrion, Attika, Griechenland

Copyright: Stephan Wolfsried
Contribution: JHM 2005-11-07
Locality: Lavrion (Laurion), Bergbaudistrikt / Attika (Attikí, Attica) / Griechenland
Cyanotrichit
Views (Image: 1316160401): 1518, Rating: 9.25
Cyanotrichit

Größe: 5,39 mm; Fundort: Dachang Mine, Verwaltungsbezirk Qinglong (Liancheng), Provinz Guizhou, China

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2011-09-16
Locality: Qinglong Mine (Dachang Mine) / Dachang Sb-Erzfeld / Qinglong, Kreis / Qianxinan, autonomer Bezirk / Guizhou, Provinz / China

Collectors Summary

Color himmelblau, hellblau, dunkelblau
Streak color blass blau
Lustre seidig
Hardness (Mohs) 2
Cleavages {???} gut
Fracture spröde
Solubility +++ Säuren, vermeide H2O, Detergentien und Ultraschallbad
Crystal System monoklin, C2/m
Morphology Kristalle radialstrahlig und igelförmig angeordnet; Krusten,

Additional information / Summary

Eine Probe aus Cap Garonne in Frankreich zeigt abweichend eine 4b Superstruktur mit den Zellparametern:

Raumgruppe: P2/m,
a = 12.611(2) Å,
b = 11.584(16) = 4×2.896(4) Å,
c = 10.190(1) Å
β = 92.29(6)°

Chemism

Chem­ical formula

Cu4Al2(SO4)(OH)12·2H2O

Chem­ical com­po­si­tion

Aluminium, Kupfer, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 644.3306684 u; Number of atoms in the formula: 41

Info

Empirical formula:

Cu4Al2(SO4)(OH)12·2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.50

16

39.02

1.0079470

16.1271520

Oxygen

O

44.70

18

43.90

15.9994300

287.9897400

Aluminium

Al

8.38

2

4.88

26.9815382

53.9630764

Sulfur

S

4.98

1

2.44

32.0655000

32.0655000

Copper

Cu

39.45

4

9.76

63.5463000

254.1852000

Anal­y­sis wt%

CuO : 48.22, Al2O3 : 15.72, SO3 : 13.22, H2O : 23.14 (Ref: Dana, 7th ed. 2)

Strunz 9th edi­tion incl. updates

7.DE.10

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
E: mit mittelgroßen Kationen; unklassifiziert
10:Cyanotrichit-Gruppe

Lapis Clas­sifica­tion

VI/D.08-020

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

Clas­sifica­tion by Hölzel

7.DD.600

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

Dana 8th edi­tion

31.02.01.01

31: Hydrated Sulfates Containing Hydroxyl or Halogen
02: Hydrated Sulfates Containing Hydroxyl or Halogen where (A+ B++)6 (XO4) Zq·x(H2O)

IMA sta­tus

anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

himmelblau, hellblau, dunkelblau

Streak color

blass blau

Diaphane­ity (Trans­parency)

durchscheinend

Lus­tre

seidig

max. Birefrin­gence

0.065

Birefringence chart\! Cyanotrichite title=Birefringence chart Cyanotrichite

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

1.590

RI value β

1.619

RI value γ / ε

1.655

Ri mean

1.621

2V angle

Biaxial (+) 82°

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

12.625(3)

Cell param­e­ters b (Å)

2.8950(6)

Cell param­e­ters c (Å)

10.153(2)

Cell param­e­ters a/b or c/a

4.361

Cell param­e­ters c/b

3.507

Cell param­e­ters α

90°

Cell param­e­ters β

92.17(3)°

Cell param­e­ters γ

90°

Z

1

Volumne (ų)

370.82

Kristall struc­ture

Ventruti, G., Mugnaioli, E., Capitani, G. et al.: A structural study of cyanotrichite from Dachang by conventional and automated electron diffraction. Phys. Chem. Minerals Vol. 42 (2015) S. 651-661.

X-Ray Pow­der Diffrac­tion

10.2(100),
5.47(50),
5.26(80),
3.88(90),
3.38(30),
3.04(40),
2.392(30),
2.032(30)

XRD chart Cyanotrichite

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

Morphol­ogy

Kristalle radialstrahlig und igelförmig angeordnet; Krusten,

Physical Properties

Hard­ness (Mohs)

2

Density (g/cm³)

2.74 - 2.95 / Durchschnittlich = 2.84

2.885 ( ρ calc. Mineralienatlas )

Cleav­ages

{???} gut

Frac­ture

spröde

Tenac­ity

spröde

Radioac­tiv­ity

Cyanotrichit ist nicht radioaktiv.

Insta­bil­ity

+++ Säuren, vermeide H2O, Detergentien und Ultraschallbad

Chem­ical Prop­er­ties and Tests

löslich in Säuren.

(Co-)Type locality

(Co-)Type locality

Rumänien/Caras-Severin, Kreis/Banat/Moldova-Noua-Sasca Cu-Mo-Erzfeld/Neumoldowa (Moldova Noua)

Type mate­r­ial

Mineralogische Sammlung der TU Bergakademie Freiberg

Col­lec­tion number of type mate­r­ial

105613 / K 262; 105616 / K 262

Par­a­ge­n­e­sis of type mate­r­ial

Goethit, Malachit

Preface

Gen­er­a­tion con­di­tions

Cyanotrichit entsteht bei der Oxidation von Kupfererzen.

Asso­cia­tions

Brochantit, Malachit, Azurit, Chalkophyllit, Limonit, Chalkoalumit, Spangolith, Olivenit, Tirolit, Parnauit

Name from

Bezeichnungen aus den griechischen Wörtern "kyaneos" = schwarzblau und "triches" = Haare zusammengesetzt.

Author (Name, Year)

Glocker, 1839

Rel­evance, Usage

Cyanotrichit ist zu selten um von wirtschaftlich Bedeutung zu sein. Es wird gelegentlich mit anderen Kupfererzen zusammen abgebaut. Als Sammlermineral ist es allerdings sehr geschätzt.

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 172

Hager, S. L., Leverett, P. & Williams, P. A. (2009): Possible structural and chemical relationships in the cyanotrichite group. Canadian Mineralogist 47, 635-648.

Mills, S.J., Christy, A.G., Colombo, F., Price, J.R. - The crystal structure of cyanotrichite. Mineralogical Magazine, 79 (2015), 321–335. [Kristallstruktur]

Ventruti, G., Mugnaioli, E., Capitani, G., Scordari, F., Pinto, D., Lausi, A. - A structural study of cyanotrichite from Dachang by conventional and automated electron diffraction. Physics and Chemistry of Minerals, 42 (2015), (in press).

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

Camérolaite

Cu4Al2[HSbO4,SO4]OH10(CO3)·2H2O

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

7.DE.10

Cyanotrichite

Cu4Al2(SO4)(OH)12·2H2O

monoklin : 2/m : C2/m

7.DE.10

'UKI-1975-(SO:AlCu)'

(Cu,Al,SO4,H2O)

7.DE.10

Carbonatecyanotrichite

Cu42+Al2(CO3,SO4)(OH)12·2H2O

7.DE.10

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]

Cyanotrichite

Cu4Al2(SO4)(OH)12·2H2O

monoklin : 2/m : C2/m

7.DD.600

Woodwardite

(Cu0.75Al0.25)(SO4)0.125(OH)2·0.3H2O

7.DD.610

Carbonatecyanotrichite

Cu42+Al2(CO3,SO4)(OH)12·2H2O

7.DD.650

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

Cyanotrichite

Cu4Al2(SO4)(OH)12·2H2O

monoklin : 2/m : C2/m

31.02.01.01

Guarinoite

(Zn,Co,Ni)6(SO4)(OH,Cl)10·5H2O

31.02.04.01

Thérèsemagnanite

NaCo4(SO4)(OH)6Cl·6H2O

trigonal : 3 : P3

31.02.05.01

Uranopilite

(UO2)6SO4O2(OH)6·14H2O

triklin : 1 : P1

31.02.06.01

Jáchymovite

(UO2)8(OH)14(SO4)·13H2O

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

31.02.06.02

Redgillite

Cu6(OH)10(SO4)·H2O

monoklin : 2/m : P21/c

31.02.08.01

Other languages

Spanish

Cianotriquita

Dutch

Cyanotrichiet

German

Cyanotrichit

English

Cyanotrichite

French

Cyanotrichite

Russian

Цианотрихит

Japanese

青針銅鉱

Alternative Name

Chivre Velouté

French

Chivre Velouté

French

Cuivre Velouté

French

Cuivre Velouté

Cuivre Velouté

Cyanotrichita

Kupfersammeterz

Kupfersammterz

German

Kupfersamterz

Kyanotrichit

Kyanotrichita

Kyanotrichite

Lettsomit

Lettsomita

Lettsomite

Namaqualit

Namaqualita

Namaqualite

Sammeterz

Velvet Copper

Velvet Copper Ore

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

German pages

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

English pages

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

Webmineral.ru - search for: Цианотрихит

Mineral Dealer

German pages

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