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Georgbokiite (Georgbokiit)

Pictures (1 Images total)

Georgbokiit
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Georgbokiit
olivgrüne Kristalle von Georgbokiit, Glavnoye Fumarole, Große Spalteneruption, Tolbachik, Kamtschatka, Russland; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Russland/Ferner Osten, Föderationskreis/Kamtschatka, Krai/Milkowski (Milkovsky), Rajon/Tolbachik-Vulkan-Feld/Große Spalteneruption (Great Fissure)/Nördlicher Bruch/Zweiter Schlackenkegel/Glavnaya Tenoritovaya-Fumarole
Mineral: Georgbokiite
Image: 1579978751
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Georgbokiit

olivgrüne Kristalle von Georgbokiit, Glavnoye Fumarole, Große Spalteneruption, Tolbachik, Kamtschatka, Russland; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-01-25
Locality: Glavnaya Tenoritovaya-Fumarole / Zweiter Schlackenkegel / Nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan-Feld / Milkowski (Milkovsky), Rajon / Kamtschatka, Krai / Ferner Osten, Föderationskreis / Russland

Collectors Summary

Color dunkelbraun
Hardness (Mohs) 1.00 - 2.00
Cleavages sehr vollkommen {010} und vollkommen {100}
Fracture nicht genannt
Crystal System monoklin, P21/c

Chemism

Chemical formula

Cu5[O|Cl|SeO3]2

Chemical composition

Chlor, Kupfer, Selen, Sauerstoff

Unit weight: 674.55934 u; Number of atoms in the formula: 17

Info

Empirical formula:

Cu5[OClSeO3]2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

18.97

8

47.06

15.9994300

127.9954400
Chlorine

Cl

10.51

2

11.76

35.4532000

70.9064000
Copper

Cu

47.10

5

29.41

63.5463000

317.7315000
Selenium

Se

23.41

2

11.76

78.9630000

157.9260000

Analysis wt%

CuO : 58.96, Cl : 10.51, SeO2 : 32.90 (Ref: berechnet)

Strunz 9th edition incl. updates

4.JG.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
J: Antimonite, Bismuthite, Sulfite, Selenite, Tellurite
G: Selenite mit zusätzliche [Anionen], ohne H20
05:Georgbokiit-Gruppe

Lapis Classification

IV/K.05-050

IV: OXIDE
K: Sulfite, Selenite, Tellurite
5: Sulfite, Selenite, Tellurite mit Baugruppen [XO3] 2- und verwandte Strukturen

Classification by Hölzel

5.LB.130

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
L: Selenites
B: Selenites (+Anions -Water)

Dana 8th edition

34.06.07.02

34: Selenites - Tellurites - Sulfites
06: Selenites - Tellurites - Sulfites
07: Chloromenite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

dunkelbraun

max. Birefringence

0.09
Birefringence chart\! Georgbokiite title=Birefringence chart Georgbokiite

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

2.06

RI value β

2.107

RI value γ / ε

2.15

Ri mean

2.11

2V angle

Biaxial (-) 82°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

6.045

Cell parameters b (Å)

13.778

Cell parameters c (Å)

5.579

Cell parameters a/b or c/a

0.439

Cell parameters c/b

0.405

Cell parameters α

90°

Cell parameters β

95.77

Cell parameters γ

90°

Z

2

Volume (ų)

462.31

X-Ray Powder Diffraction

6.88(70),
6.005(30),
5.511(50),
2.990(100),
2.963(90),
2.566(70),
2.296(90),
2.265(30)
XRD chart Georgbokiite

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)

1.00 - 2.00

VHN (Hardness Vickers)

215 (10g)

Density (g/cm³)

4.84 (berechnet)

4.846 ( ρ calc. Mineralienatlas )

Cleavages

sehr vollkommen {010} und vollkommen {100}

Fracture

nicht genannt

Tenacity

schneidbar

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Kamtschatka, Krai/Milkowski (Milkovsky), Rajon/Tolbachik-Vulkan-Feld/Große Spalteneruption (Great Fissure)

Preface

Rareness

rare

Author (Name, Year)

Vergasova & Semenova & Filatov & Krivovichev & Shuvalov & Anan'ev, 1999

References

Transactions (Doklady) of the USSR Academy of Sciences, Earth Science Sections 364 (1999), 134

Other languages

German

Georgbokiit

English

Georgbokiite

French

Georgbokiite

Spanish

Georgbokiíta

Russian

Георгбокиит

Simplified Chinese

乔格波基石

CNMNC (IMA)-Number

IMA 1996-015

CNMNC symbol

Symbol

Gbk

Locations with GPS information

IDs

GUSID (Global unique identifier short form) sBIlMqkiXUGCU5fciWl6fA
GUID (Global unique identifier) 322512B0-22A9-415D-8253-97DC89697A7C
Database ID 1360