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Cyanochroite

Pictures (2 Images total)

Cyanochroit pseudomorph nach Piypit xx
Views (Image: 1215414869): 1292
Cyanochroit pseudomorph nach Piypit xx

Bildbreite: 10 mm; Fundort: nördlicher Bruch, Große Spalteneruption, Tolbachik Vulkan, Kamchatka Oblast', Russland
Copyright: Pavel M. Kartashov
Contribution: slugslayer 2008-07-07
Locality: nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland
winzige pustelige hellblaue Cyanochroite
Views (Image: 1505556222): 347
winzige pustelige hellblaue Cyanochroite (SNr: A037834)

von der Schlackenfundstelle Vrissaki bei Laurion, Attika, Griechenland, BB = 1,7 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2017-09-16
Locality: Vrissaki / Schlackenfundstellen / Lavrion (Laurion), Bergbaudistrikt / Attika (Attikí, Attica) / Griechenland

Collectors Summary

Color grün blau
Streak color weiß
Solubility +++ H2O
Crystal System monoklin, P21/c

Chemism

Chem­ical formula

K2Cu(SO4)·6H2O

Chem­ical com­po­si­tion

Kupfer, Kalium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 345.898084 u; Number of atoms in the formula: 26

Info

Empirical formula:

K2Cu(SO4)·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

3.50

12

46.15

1.0079470

12.0953640
Oxygen

O

46.25

10

38.46

15.9994300

159.9943000
Sulfur

S

9.27

1

3.85

32.0655000

32.0655000
Potassium

K

22.61

2

7.69

39.0983100

78.1966200
Copper

Cu

18.37

1

3.85

63.5463000

63.5463000

Anal­y­sis wt%

K2O : 21.32, CuO : 18.00, SO3 : 36.23, H2O : 24.46 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

7.CC.60

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
C: Sulfate (Selenate, etc.) ohne weitere Anionen, mit H2O
C: Mit mittelgroßen und großen [Kationen]
60:Pikromerit-Gruppe

Lapis Clas­sifica­tion

VI/C.19-020

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
C: Wasserhaltige Sulfate, ohne fremde Anionen
19: Mittelgroße und sehr große Kationen; Pikromerit-Gruppe

Clas­sifica­tion by Hölzel

7.CD.320

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
C: Sulfates (-Anions +Water)
D: Sulfates, C medium + large
3: Picromerite-Group

Dana 8th edi­tion

29.03.06.02

29: Hydrated Acid and Sulfates
03: Hydrated Acid and Sulfates where (A+)2 B (XO4)2 · x(H2O)

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

grün blau

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent

max. Birefrin­gence

0.018
Birefringence chart\! Cyanochroite title=Birefringence chart Cyanochroite

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

1.484

RI value β

1.486

RI value γ / ε

1.502

Ri mean

1.491

2V angle

Biaxial (+) 47°

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell param­e­ters a (Å)

9.09

Cell param­e­ters b (Å)

12.14

Cell param­e­ters c (Å)

6.18

Cell param­e­ters a/b or c/a

0.749

Cell param­e­ters c/b

0.509

Cell param­e­ters α

90°

Cell param­e­ters β

104.47

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

660.346

X-Ray Pow­der Diffrac­tion

4.254(30),
4.179(90),
4.057(80),
3.673(100),
2.993(40),
2.975(70),
2.816(40),
2.377(50)
XRD chart Cyanochroite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.224

1.74 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O

Preface

Author (Name, Year)

Scacchi, 1855

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 171.

Juraj Majzlan, Arne H. Zittlau, Klaus-Dieter Grevel, Jacob Schliesser, Brian F. Woodfield, Edgar Dachs, Martin Števko, Martin Chovan, Jakub Plášil, Jiří Sejkora, Stanislava Milovská: Thermodynamic Properties and Phase Equilibria of the Secondary Copper Minerals Libethenite, Olivenite, Pseudomalachite, Kröhnkite, Cyanochroite, and Devilline. Can. Mineral. Vol. 53 (2015) S. 937-960.

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

Mohrite

(NH4)2Fe2+(SO4)2·6H2O

monoklin : 2/m : P21/a

7.CC.60

Konyaite

Na2Mg(SO4)2·5H2O

monoklin : 2/m : P21/c

7.CC.60

Picromerite

K2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

7.CC.60

Cyanochroite

K2Cu(SO4)·6H2O

monoklin : 2/m : P21/c

7.CC.60

Boussingaultite

(NH4)2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

7.CC.60

Katerinopoulosite

(NH4)2Zn(SO4)2·6H2O

monoklin : 2/m : P21/a

7.CC.60

Nickelpicromerite

K2Ni(SO4)2·6H2O

monoklin : 2/m : P21/c

7.CC.60

'Nickelboussingaultite'

(NH4)2(Ni,Mg)(SO4)2·6H2O

7.CC.60

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

Picromerite

K2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

VI/C.19-010

Cyanochroite

K2Cu(SO4)·6H2O

monoklin : 2/m : P21/c

VI/C.19-020

Boussingaultite

(NH4)2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

VI/C.19-030

'Nickelboussingaultite'

(NH4)2(Ni,Mg)(SO4)2·6H2O

VI/C.19-040

Mohrite

(NH4)2Fe2+(SO4)2·6H2O

monoklin : 2/m : P21/a

VI/C.19-050

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

Picromerite

K2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

7.CD.300

Boussingaultite

(NH4)2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

7.CD.310

Cyanochroite

K2Cu(SO4)·6H2O

monoklin : 2/m : P21/c

7.CD.320

Mohrite

(NH4)2Fe2+(SO4)2·6H2O

monoklin : 2/m : P21/a

7.CD.330

'Nickelboussingaultite'

(NH4)2(Ni,Mg)(SO4)2·6H2O

7.CD.340

Amarillite

NaFe3+(SO4)2·6H2O

monoklin : 2/m : C2/c

7.CD.370

Tamarugite

NaAl(SO4)2·6H2O

monoklin : 2/m : P21/a

7.CD.375

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

Syngenite

K2Ca(SO4)2·H2O

monoklin : 2/m : P21/m

 29.03.01.01

Koktaite

(NH4)2Ca(SO4)2·H2O

monoklin : 2/m : P21/m

 29.03.01.02

Kröhnkite

Na2Cu(SO4)2· 2H2O

monoklin : 2/m : P21/c

 29.03.02.01

Blödite

Na2Mg(SO4)2·4H2O

monoklin : 2/m : P21/a

 29.03.03.01

Nickelblödite

Na2(Ni,Mg)(SO4)2·4H2O

monoklin : 2/m : P21/a

 29.03.03.02

Leonite

K2Mg(SO4)2·4H2O

monoklin : 2/m : C2/m

 29.03.03.03

Mereiterite

K2Fe2+[SO4]2·4H2O

monoklin : 2/m : C2/m

 29.03.03.04

Changoite

Na2Zn[SO4]2·4H2O

monoklin : 2/m : P21/a

 29.03.03.05

Konyaite

Na2Mg(SO4)2·5H2O

monoklin : 2/m : P21/c

 29.03.05.01

Picromerite

K2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

 29.03.06.01

Cyanochroite

K2Cu(SO4)·6H2O

monoklin : 2/m : P21/c

 29.03.06.02

Mohrite

(NH4)2Fe2+(SO4)2·6H2O

monoklin : 2/m : P21/a

 29.03.07.01

Boussingaultite

(NH4)2Mg(SO4)2·6H2O

monoklin : 2/m : P21/a

 29.03.07.02

'Nickelboussingaultite'

(NH4)2(Ni,Mg)(SO4)2·6H2O

 29.03.07.03

Mosesite

Hg2N(Cl,SO4,MoO4,CO3)·H2O

kubisch : 43m : F43m

 29.03.08.01

Other languages

Spanish

Cianocroíta

German

Cyanochroit

English

Cyanochroite

French

Cyanochroite

Russian

Цианохроит

Alternative Name

Italian

Cianochroma

German

Cianocroit

Cianocroite

Spanish

Cyanochroita

Cyanochrome

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

German pages

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

English pages

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

Russian pages

 Webmineral.ru - search for: Цианохроит

Mineral Dealer

German pages

 hausen - Mineralgroßhandel - search for: Cyanochroit
Crystal-Treasure.com - search for: Cyanochroit
Bosse - search for: Cyanochroit

Locations with GPS information