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Kobyashevite (Kobyashevit)

Pictures (2 Images total)

Kobyashevit
Views (Image: 1585579572): 335
Kobyashevit

grüner Kobyashevit und farblose Gips-Kristalle. Ojuela Mine, Mapimi, Mexiko BB: 2,0mm

Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2020-03-30
Locality: Ojuela Mine / Mapimí / Mapimí, Municipio / Durango / Mexiko
Kobyashevit
Views (Image: 1585579768): 283
Kobyashevit

grüner Kobyashevit und farblose Gips-Kristalle. Ojuela Mine, Mapimi, Mexiko BB: 0,8mm

Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2020-03-30
Locality: Ojuela Mine / Mapimí / Mapimí, Municipio / Durango / Mexiko

Collectors Summary

Color blaugrün, türkis
Lustre Glasglanz
Hardness (Mohs) 2.5
Cleavages deutlich {010}
Crystal System triklin, P1

Chemism

Chem­ical formula

Cu5(SO4)2(OH)6·4H2O

Empir­ical formula (anal­y­sis)

Cu4.96Fe0.03Zn0.01S2.01O8.04(OH)5.96·4H2O

Chem­ical com­po­si­tion

Kupfer, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 684.03143312 u; Number of atoms in the formula: 38.97

Info

Empirical formula:

Cu4.96Fe0.03Zn0.01S2.01O8.04(OH)5.96·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.06

13.96

35.82

1.0079470

14.0709401

Oxygen

O

42.10

18

46.19

15.9994300

287.9897400

Sulfur

S

9.42

2.01

5.16

32.0655000

64.4516550

Iron

Fe

0.24

0.03

0.08

55.8452000

1.6753560

Copper

Cu

46.08

4.96

12.73

63.5463000

315.1896480

Zinc

Zn

0.10

0.01

0.03

65.4094000

0.6540940

Strunz 9th edi­tion incl. updates

7.A.

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
A: Sulfate (Selenate, etc.) ohne weitere Anionen, ohne H2O

Lapis Clas­sifica­tion

VI/D.19-008

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
19: Mittelgroße und sehr große Kationen

Clas­sifica­tion by Hölzel

7.DB.325

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

IMA sta­tus

anerkannt - CNMNC Newsletter - NEW MINERAL PROPOSALS APPROVED IN OCTOBER 2011

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

blaugrün, türkis

Lus­tre

Glasglanz

max. Birefrin­gence

0.077

Birefringence chart\! Kobyashevite title=Birefringence chart Kobyashevite

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

α = 1.602(4)

RI value β

β = 1.666(5)

RI value γ / ε

γ = 1.679(5)

Ri mean

1.649

2V angle

Biaxial (-) 50(10)º (gemessen)

Crystallography

Crystal Sys­tem

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell param­e­ters a (Å)

6.073

Cell param­e­ters b (Å)

11.060

Cell param­e­ters c (Å)

5.509

Cell param­e­ters a/b or c/a

0.549

Cell param­e­ters c/b

0.498

Cell param­e­ters α

102.88

Cell param­e­ters β

92.35

Cell param­e­ters γ

92.60

Z

1

Volumne (ų)

359.847

Kristall struc­ture

Struktur bestimmt, bekannte synthetische Phase

X-Ray Pow­der Diffrac­tion

10.84(100), 5.399(40), 5.178(12), 3.590(16), 2.691(16), 2.653(12), 2.583(12), 2.425(12)

XRD chart Kobyashevite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2.5

Density (g/cm³)

3.155 (berechnet)

3.156 ( ρ calc. Mineralienatlas )

Cleav­ages

deutlich {010}

(Co-)Type locality

(Co-)Type locality

Russland/Ural, Föderationskreis/Tscheljabinsk, Oblast/Vishnevye-Gebirge/Kapital'naya Mine

Type mate­r­ial

Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia

Col­lec­tion number of type mate­r­ial

4152/1

Preface

Name from

Das Mineral ist nach dem russischen Mineralogen George Stepanovich Kobyasheva (1935-2009), einem Spezialisten in der Mineralogie des Urals benannt

Author (Name, Year)

Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Chukanov, N.V., Kasatkin, A.V., Kuznetsov, A.M. and Pushcharovsky, D.Y. (2011)

References

Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Chukanov, N.V., Kasatkin, A.V., Kuznetsov, A.M. and Pushcharovsky, D.Y. (2011) Kobyashevite, IMA 2011-066. CNMNC Newsletter No. 11, December 2011, page 2890; Mineralogical Magazine, 75, 2887-2893.

Igor V. Pekov, Natalia V. Zubkova, Vasiliy O. Yapaskurt, Dmitriy I. Belakovskiy, Nikita V. Chukanov, Anatoly V. Kasatkin, Aleksey M. Kuznetsov and Dmitry Y. Pushcharovsky (2012). Kobyashevite, Cu5(SO4)2(OH)6·4H2O, a new devilline-group mineral from the Vishnevye Mountains, South Urals, Russia - Mineralogy and Petrology. 107, 201-210.

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

Campigliaite

Mn2+Cu4[(OH)6|(SO4)2]·4H2O

monoklin : 2 : C2

VI/D.19-002

Edwardsite

Cu3Cd2(SO4)2(OH)6·4H2O

monoklin : 2/m : P21/C

VI/D.19-004

Niedermayrite

CdCu4[(OH)6|(SO4)2]·4H2O

monoklin : 2/m : P21/m

VI/D.19-005

Kobyashevite

Cu5(SO4)2(OH)6·4H2O

triklin : 1 : P1

VI/D.19-008

Devilline

CaCu4(SO4)2(OH)6·3H2O

monoklin : 2/m : P21/c

VI/D.19-010

Aldridgeite

(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

VI/D.19-015

Serpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

monoklin : 2/m : C2/c

VI/D.19-020

Orthoserpierite

Ca(Cu,Zn)4(SO4)2(OH)6·3H2O

orthorhombisch : mm2 : Pca21

VI/D.19-030

Lautenthalite

PbCu42+(OH)6(SO4)2·3H2O

monoklin : 2/m : P21/c

VI/D.19-032

'Arzrunite'

Cu4Pb2SO4O2Cl6·4H2O

VI/D.19-035

Tatarskite

Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7H2O

VI/D.19-040

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

Other languages

German

Kobyashevit

English

Kobyashevite

Russian

Кобяшевит

Alternative Name

Strandbergite

IMA Number

IMA 2011-066

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Кобяшевит

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Kobyashevit
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Locations with GPS information