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Ktenasite

Pictures (108 Images total)

Ktenasit
Views (Image: 1341738498): 3415, Rating: 9.5
Ktenasit

Größe: 0,54 mm, Fundort: La Veneziana Mine, Monte Trisa, Val Mercanti, Torrebelvicino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato
Contribution: Hg 2012-07-08
Locality: La Veneziana Mine / Monte Trisa / Val Mercanti / Torrebelvicino / Vicenza, Provinz / Venetien (Veneto), Region / Italien
Ktenasit
Views (Image: 1394963964): 1156
Ktenasit

Hilarion, Kamariza, Laurion (Lavrion), Attika, Griechenland. Bildbreite 0,25 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2014-03-16
Locality: Hilarion Mine (Hilarion-Stollen, Mine Nr. 50) / Kamariza / Lavrion (Laurion), Bergbaudistrikt / Attika (Attikí, Attica) / Griechenland
Ktenasit
Views (Image: 1342348683): 2882, Rating: 8.78
Ktenasit

Größe: 0,94 mm, Fundort: La Veneziana Mine, Monte Trisa, Val Mercanti, Torrebelvicino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato
Contribution: Hg 2012-07-15
Locality: La Veneziana Mine / Monte Trisa / Val Mercanti / Torrebelvicino / Vicenza, Provinz / Venetien (Veneto), Region / Italien
Ktenasit
Views (Image: 1285196449): 1077
Ktenasit

Größe: 1,51 mm; Fundort: Val Mercanti, Torrebelvicino, Vicenza, Venetien (Veneto), Italien
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-09-23
Locality: Val Mercanti / Torrebelvicino / Vicenza, Provinz / Venetien (Veneto), Region / Italien
Ktenasit
Views (Image: 1585934924): 307
Ktenasit

grüne, lanzettartige, transparente Ktenasit xls. BB = 4,5 mm.Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Lutherstadt Eisleben/Krughütte Modified by CombineZP;
Collection: horst knoll
Copyright: horst knoll
Contribution: horst knoll 2020-04-03
Locality: Krughütte / Lutherstadt Eisleben / Mansfeld-Südharz, Landkreis / Sachsen-Anhalt / Deutschland
Ktenasit
Views (Image: 1419532854): 768
Ktenasit (SNr: A027221)

Tafelige hellgrüne Kristalle mit Gips, BB = 4,2 mm; Fundort: Hilarion-Stollen Nr. 50, Kamariza, Lavrion, Attika, Griechenland.
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2014-12-25
Locality: Hilarion Mine (Hilarion-Stollen, Mine Nr. 50) / Kamariza / Lavrion (Laurion), Bergbaudistrikt / Attika (Attikí, Attica) / Griechenland

Collectors Summary

Color blau, blau grün, grün, smaragdgrün
Streak color hellgrün
Hardness (Mohs) 3.25
Solubility +++ Säuren
Crystal System monoklin, P21/c

Chemism

Chem­ical formula

ZnCu4(SO4)2(OH)6·6H2O

Chem­ical com­po­si­tion

Kupfer, Zink, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 721.857246 u; Number of atoms in the formula: 45

Info

Empirical formula:

ZnCu4(SO4)2(OH)6·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.51

18

40.00

1.0079470

18.1430460
Oxygen

O

44.33

20

44.44

15.9994300

319.9886000
Sulfur

S

8.88

2

4.44

32.0655000

64.1310000
Copper

Cu

35.21

4

8.89

63.5463000

254.1852000
Zinc

Zn

9.06

1

2.22

65.4094000

65.4094000

Anal­y­sis wt%

CuO : 37.90, ZnO : 16.60, SO3 : 24.00, H2O : 22.00 (Ref: Mineralogical Magazine 77)

Strunz 9th edi­tion incl. updates

7.DD.20

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

Lapis Clas­sifica­tion

VI/D.03-070

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

Clas­sifica­tion by Hölzel

7.DB.340

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
B: Langite-Group

Dana 8th edi­tion

31.06.03.01

31: Hydrated Sulfates Containing Hydroxyl or Halogen
06: Hydrated Sulfates Containing Hydroxyl or Halogen where (A+ B++)5 (XO4)2 Zq·x(H2O)

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Ktenasite group

Optical Properties

Color

blau, blau grün, grün, smaragdgrün

Streak color

hellgrün

Diaphane­ity (Trans­parency)

transparent

max. Birefrin­gence

0.054
Birefringence chart\! Ktenasite title=Birefringence chart Ktenasite

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

1.574

RI value β

1.615

RI value γ / ε

1.628

Ri mean

1.606

2V angle

Biaxial (-) 59°

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell param­e­ters a (Å)

5.598

Cell param­e­ters b (Å)

6.121

Cell param­e­ters c (Å)

23.762

Cell param­e­ters a/b or c/a

0.915

Cell param­e­ters c/b

3.882

Cell param­e­ters α

90°

Cell param­e­ters β

95.55

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

810.397

X-Ray Pow­der Diffrac­tion

11.82(100),
5.93(80),
4.85(90),
2.955(50),
2.785(60),
2.688(60),
2.655(50),
2.584(70)
XRD chart Ktenasite

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)

3.25

VHN (Hard­ness Vick­ers)

113 (10g)

Density (g/cm³)

2.94

2.958 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Griechenland/Attika (Attikí, Attica)/Lavrion (Laurion), Bergbaudistrikt/Kamariza/Jean Baptist Mine

Preface

Author (Name, Year)

Kokkoros, 1950

References

Mineralogical Magazine 41 (1977), 65

CNMNC Newsletter 52; November 2019; Revision of the ideal formula of ktenasite; After the approval of fehrite, MgCu4(SO4)2(OH)6·6H2O (IMA No. 2018-125a; see above), the ideal formula of the related mineral ktenasite is modified from (Cu,Zn)5(SO4)2(OH)6·6H2O to ZnCu4(SO4)2(OH)6·6H2O. This is an executive decision taken by the CNMNC.

IMA group assignments

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

Fehrite

MgCu4(SO4)2(OH)6·6H2O

monoklin : 2/m : P21/c

7.DD.20

Ktenasite

ZnCu4(SO4)2(OH)6·6H2O

monoklin : 2/m : P21/c

7.DD.20

Gobelinite

CoCu4(SO4)2(OH)6·6H2O

monoklin : 2/m : P21/c

7.DD.20

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

Montetrisaite

Cu6(SO4)(OH)10·2 H2O

orthorhombisch : mm2 : Cmc21

VI/D.03-003

Redgillite

Cu6(OH)10(SO4)·H2O

monoklin : 2/m : P21/c

VI/D.03-005

Posnjakite

Cu4(SO4)(OH)6·H2O

monoklin : m : Pa

VI/D.03-010

Langite

Cu4(SO4)(OH)6·2H2O

monoklin : m : Pc

VI/D.03-020

Wroewolfeite

Cu4(SO4)(OH)6·2H2O

monoklin : m : Pc

VI/D.03-030

Namuwite

(Zn,Cu)4(SO4)(OH)6·4H2O

trigonal : 3 : P3

VI/D.03-040

Osakaite

Zn4SO4(OH)6·5H2O

triklin : 1 : P1

VI/D.03-045

Guarinoite

(Zn,Co,Ni)6(SO4)(OH,Cl)10·5H2O

VI/D.03-050

Thérèsemagnanite

NaCo4(SO4)(OH)6Cl·6H2O

trigonal : 3 : P3

VI/D.03-055

Schulenbergite

(Cu,Zn)7(SO4,CO3)2(OH)10·3H2O

trigonal : 3, 3 : P3, P3

VI/D.03-060

Christelite

Zn3Cu2[(OH)6|(SO4)2]·4H2O

triklin : 1 : P1

VI/D.03-065

Ktenasite

ZnCu4(SO4)2(OH)6·6H2O

monoklin : 2/m : P21/c

VI/D.03-070

Ramsbeckite

(Cu,Zn)15(SO4)4(OH)22·6H2O

monoklin : 2/m : P21/a

VI/D.03-075

Nakauriite

Cu8(SO4)4(CO3)(OH)6·48H2O

VI/D.03-090

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

Campigliaite

Mn2+Cu4[(OH)6|(SO4)2]·4H2O

monoklin : 2 : C2

7.DB.300

Niedermayrite

CdCu4[(OH)6|(SO4)2]·4H2O

monoklin : 2/m : P21/m

7.DB.310

Christelite

Zn3Cu2[(OH)6|(SO4)2]·4H2O

triklin : 1 : P1

7.DB.320

Kobyashevite

Cu5(SO4)2(OH)6·4H2O

triklin : 1 : P1

7.DB.325

Ktenasite

ZnCu4(SO4)2(OH)6·6H2O

monoklin : 2/m : P21/c

7.DB.340

Edwardsite

Cu3Cd2(SO4)2(OH)6·4H2O

monoklin : 2/m : P21/C

7.DB.350

Related minerals "Dana 8. 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

 31.06.01.01

Lautenthalite

PbCu42+(OH)6(SO4)2·3H2O

monoklin : 2/m : P21/c

 31.06.01.02

Serpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

 31.06.02.01

Ktenasite

ZnCu4(SO4)2(OH)6·6H2O

monoklin : 2/m : P21/c

 31.06.03.01

Christelite

Zn3Cu2[(OH)6|(SO4)2]·4H2O

triklin : 1 : P1

 31.06.03.02

Peretaite

CaSb43+O4(OH)2(SO4)2·2H2O

monoklin : 2/m : C2/c

 31.06.04.01

Campigliaite

Mn2+Cu4[(OH)6|(SO4)2]·4H2O

monoklin : 2 : C2

 31.06.06.01

Niedermayrite

CdCu4[(OH)6|(SO4)2]·4H2O

monoklin : 2/m : P21/m

 31.06.06.02

Orthoserpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

orthorhombisch : mm2 : Pca21

 31.06.07.01

Rabejacite

Ca2[(UO2)4O4(SO4)2](H2O)8

triklin : 1 : P1

 31.06.08.01

CNMNC symbol

Symbol

Kte

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

German pages

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English pages

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Russian pages

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