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Nabokoite

Pictures (3 Images total)

Nabokoit
Views (Image: 1400055608): 602
Nabokoit

Bildbreite: 1 mm, Fundort: Arsenatnaya Fumarole, zweiter Schlackenkegel, nördlicher Bruch, Große Spalteneruption, Tolbachik Vulkan, Kamchatka Oblast', Russland
Copyright: Stephan Wolfsried
Contribution: Hg 2014-05-14
Locality: Arsenatnaya Fumarole / zweiter Schlackenkegel / nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland
Nabokoit
Views (Image: 1399970301): 731
Nabokoit

Bildbreite: 0,6 mm, Fundort: Arsenatnaya Fumarole, zweiter Schlackenkegel, nördlicher Bruch, Große Spalteneruption, Tolbachik Vulkan, Kamchatka Oblast', Russland
Copyright: Stephan Wolfsried
Contribution: Hg 2014-05-13
Locality: Arsenatnaya Fumarole / zweiter Schlackenkegel / nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland
Atlasovit in Nabokoit
Views (Image: 1579978417): 288
Atlasovit in Nabokoit

dunkler braune Zonen von Atlasovit in gelbraunem Nabokoit, Große Spalteneruption, Tolbachik, Kamtschatka, Russland; BB < 1 mm, analysiert, gefunden in den 1970-er Jahren
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-01-25
Locality: Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland

Collectors Summary

Color gelbbraun
Hardness (Mohs) 3.25
Solubility +++ HCl, HNO3, - H2O
Crystal System tetragonal, P4/ncc

Chemism

Chem­ical formula

Cu72+Te4+O4(SO4)5·KCl

Chem­ical com­po­si­tion

Chlor, Kupfer, Tellur, Kalium, Sauerstoff, Schwefel

Unit weight: 1191.29243 u; Number of atoms in the formula: 39

Info

Empirical formula:

Cu7TeO4(SO4)5·KCl

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

32.23

24

61.54

15.9994300

383.9863200
Sulfur

S

13.46

5

12.82

32.0655000

160.3275000
Chlorine

Cl

2.98

1

2.56

35.4532000

35.4532000
Potassium

K

3.28

1

2.56

39.0983100

39.0983100
Copper

Cu

37.34

7

17.95

63.5463000

444.8241000
Tellurium

Te

10.71

1

2.56

127.6030000

127.6030000

Anal­y­sis wt%

K2O : 3.95, CuO : 46.74, SO3 : 33.60, TeO3 : 13.40, Cl : 2.98 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

7.BC.20

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

Lapis Clas­sifica­tion

VI/B.07-010

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
B: Wasserfreie Sulfate, mit fremden Anionen
7: Mittelgroße Kationen vorwiegend

Clas­sifica­tion by Hölzel

7.KB.200

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
K: Tellurates
B: Tellurates (+Anions -Water)

Dana 8th edi­tion

30.01.17.01

30: Anhydrous Sulfates Containing Hydroxyl or Halogen
01: Anhydrous Sulfates Containing Hydroxyl or Halogen where (A B)m (XO4)p Zq where m:p>2:1

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

gelbbraun

max. Birefrin­gence

0.005
Birefringence chart\! Nabokoite title=Birefringence chart Nabokoite

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

1.778

RI value γ / ε

1.773

Ri mean

1.776

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4/mmm

Space Group number

130

Space Group

P4/ncc

Cell param­e­ters a (Å)

9.84

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

20.52

Cell param­e­ters a/b or c/a

2.085

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1986.861

X-Ray Pow­der Diffrac­tion

10.35(100),
4.57(40),
3.56(40),
3.421(60),
2.881(50),
2.439(70),
1.972(40),
1.576(40)
XRD chart Nabokoite

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)

117

Density (g/cm³)

4.18 (gemessen)

3.982 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HCl, HNO3, - H2O

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Kamtschatka Oblast/Tolbachik-Vulkan/Große Spalteneruption (Great Fissure)/nördlicher Bruch/zweiter Schlackenkegel/Yadovitaya-Fumarole

Preface

Name from

der russischen Vulkanologin und Bergsteigerin Sophie Nabokova

Author (Name, Year)

Popova & Popov & Rudashevsky & Glavatskikh & Polyakov & Bushmakin, 198

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 116 (1987), 358

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

Nabokoite

Cu72+Te4+O4(SO4)5·KCl

tetragonal : 4/mmm : P4/ncc

7.BC.20

Atlasovite

KCu62+Fe3+Bi3+[O4|Cl|(SO4)5]

tetragonal : 4/mmm : P4/ncc

7.BC.20

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

Nabokoite

Cu72+Te4+O4(SO4)5·KCl

tetragonal : 4/mmm : P4/ncc

VI/B.07-010

Atlasovite

KCu62+Fe3+Bi3+[O4|Cl|(SO4)5]

tetragonal : 4/mmm : P4/ncc

VI/B.07-020

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

Nabokoite

Cu72+Te4+O4(SO4)5·KCl

tetragonal : 4/mmm : P4/ncc

7.KB.200

Agaite

Pb3CuTeO5(OH)2(CO3)

orthorhombisch : mm2 : Pca21

7.KB.230

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

D'Ansite

Na21MgCl3(SO4)10

kubisch : 43m : I43d

 30.01.10.01

Chlorothionite

K2Cu(SO4)Cl2

orthorhombisch : mmm : Pnma

 30.01.11.01

Antlerite

Cu3(SO4)(OH)4

orthorhombisch : mmm : Pnma

 30.01.12.01

Schuetteite

Hg3(SO4)O2

trigonal : 32 : P3121

 30.01.13.01

Mammothite

Pb6Cu4AlSb5+O2(SO4)2Cl4(OH)16

monoklin : 2 : C2

 30.01.14.01

Ye'elimite

Ca4Al6O12(SO4)

kubisch : 432 : I4132

 30.01.15.01

Chenite

Pb4Cu(SO4)2(OH)6

triklin : 1 : P1

 30.01.16.01

Nabokoite

Cu72+Te4+O4(SO4)5·KCl

tetragonal : 4/mmm : P4/ncc

 30.01.17.01

Atlasovite

KCu62+Fe3+Bi3+[O4|Cl|(SO4)5]

tetragonal : 4/mmm : P4/ncc

 30.01.17.02

Coquandite

Sb3+6+xO8+x(SO4)(OH)x·(H2O)1-x {x = 0.3}

triklin : 1 : P1

 30.01.18.01

Other languages

German

Nabokoit

English

Nabokoite

French

Nabokoite

Spanish

Nabokoíta

Russian

Набокоит

IMA Number

IMA 1985-013a

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

German pages

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

English pages

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

 Webmineral.ru - search for: Набокоит

Mineral Dealer

German pages

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Locations with GPS information