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Ktenasite

Pictures (124 Images total)

Ktenasit
Views (File:
1394963964
): 1568
Ktenasit
Hilarion, Kamariza, Laurion (Lavrion), Attika, Griechenland. Bildbreite 0,25 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Agios Konstantinos (Kamariza)/Kamariza Minen (Kamareza)/Hilarion Mine
Mineral: Ktenasite
Image: 1394963964
Rating: 9.5 (votes: 2)
License: Usage for Mineralienatlas project only
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 / Kamariza Minen (Kamareza) / Agios Konstantinos (Kamariza) / Lavrion (Laurion), Bergbaudistrikt / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland
Ktenasit
Views (File:
1341738498
): 3872, Rating: 9.47
Ktenasit
Größe: 0,54 mm, Fundort: La Veneziana Mine, Monte Trisa, Val Mercanti, Torrebelvicino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Venetien (Veneto), Region/Vicenza, Provinz/Torrebelvicino/Val Mercanti/Monte Trisa/La Veneziana Mine
Mineral: Ktenasite
Image: 1341738498
Rating: 9.47 (votes: 15)
License: Usage for Mineralienatlas project only
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 (File:
1342348683
): 3299, 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
Location: Italien/Venetien (Veneto), Region/Vicenza, Provinz/Torrebelvicino/Val Mercanti/Monte Trisa/La Veneziana Mine
Mineral: Ktenasite
Image: 1342348683
Rating: 8.78 (votes: 9)
License: Usage for Mineralienatlas project only
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 (File:
1285196449
): 1421
Ktenasit
Größe: 1,51 mm; Fundort: Val Mercanti, Torrebelvicino, Vicenza, Venetien (Veneto), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Italien/Venetien (Veneto), Region/Vicenza, Provinz/Torrebelvicino/Val Mercanti
Mineral: Ktenasite
Image: 1285196449
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Ktenasit

Größe: 1,51 mm; Fundort: Val Mercanti, Torrebelvicino, Vicenza, Venetien (Veneto), Italien
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-09-22
Locality: Val Mercanti / Torrebelvicino / Vicenza, Provinz / Venetien (Veneto), Region / Italien
Ktenasit
Views (File:
1585934924
): 611
Ktenasit
grüne, lanzettartige, transparente Ktenasit xls. BB = 4,5 mm.Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Lutherstadt Eisleben/Krughütte Modified by CombineZP;
Copyright: horst knoll; Contribution: horst knoll
Collection: horst knoll
Location: Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Lutherstadt Eisleben/Krughütte
Mineral: Ktenasite
Image: 1585934924
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
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

You find additional specimen at the Geolitho Museum

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

Volume (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)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Agios Konstantinos (Kamariza)/Kamariza Minen (Kamareza)/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

 
Ktenasite group
 
 
 

 
 
Asagiite
NiCu4(SO4)2(OH)6⋅6H2O
monoklin
P21/c

 
 
Fehrite
MgCu4(SO4)2(OH)6·6H2O
monoklin
P21/c

 
 
Gobelinite
CoCu4(SO4)2(OH)6·6H2O
monoklin
P21/c

 
 
Ktenasite
ZnCu4(SO4)2(OH)6·6H2O
monoklin
P21/c

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Actuality: 12. May 2025 - 15:47:45

Other languages

German

Ktenasit

Spanish

Ktenasita

English

Ktenasite

French

Ktenasite

Russian

Ктенасит

Simplified Chinese

基性铜锌矾

Japanese

ｸﾃﾅｽ石

CNMNC symbol

Symbol

Kte

Locations with GPS information

IDs

GUSID (Global unique identifier short form) fOzEkLvJIECX6yZgDAnARA
GUID (Global unique identifier) 90C4EC7C-C9BB-4020-97EB-26600C09C044
Database ID 2072