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Allochalcoselite (Allochalcoselit)

Pictures (1 Images total)

Allochalkoselit
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Allochalkoselit
braunes Aggregat von Allochalkoselit, verwachsen mit wenig Cotunnit, eingebettet in Epoxidharz, Zweiter Schlackenkegel der Großen Spalteneruption des Tolbachik, Kamtschatka, Russland; BB ~0,2 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
Mineral: Allochalcoselite
Image: 1614873316
License: Usage for Mineralienatlas project only
Allochalkoselit

braunes Aggregat von Allochalkoselit, verwachsen mit wenig Cotunnit, eingebettet in Epoxidharz, Zweiter Schlackenkegel der Großen Spalteneruption des Tolbachik, Kamtschatka, Russland; BB 0,2 mm, a...
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2021-03-04
Locality: Zweiter Schlackenkegel / Nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan-Feld / Milkowski (Milkovsky), Rajon / Kamtschatka, Krai / Ferner Osten, Föderationskreis / Russland

Collectors Summary

Color dunkelbraun
Streak color braun
Lustre Diamantglanz
Hardness (Mohs) 3 - 4
Cleavages vollkommen (100)
Crystal System monoklin, C2/m

Chemism

Chemical formula

Cu+Cu2+5PbO2(SeO3)2Cl5

Chemical composition

Blei, Chlor, Kupfer, Selen, Sauerstoff

Unit weight: 1051.67524 u; Number of atoms in the formula: 22

Info

Empirical formula:

CuCu5PbO2(SeO3)2Cl5

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

12.17

8

36.36

15.9994300

127.9954400
Chlorine

Cl

16.86

5

22.73

35.4532000

177.2660000
Copper

Cu

36.25

6

27.27

63.5463000

381.2778000
Selenium

Se

15.02

2

9.09

78.9630000

157.9260000
Lead

Pb

19.70

1

4.55

207.2100000

207.2100000

Analysis wt%

SeO2 : 20.66, CuO : 43.96, PbO : 22.34, Cl : 16.58 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 2005)

Strunz 9th edition incl. updates

3.DB.55

3: Halide (Fluoride, Chloride, Bromide, Iodide)
D: Oxihalide, Hydroxyhalide und verwandte Doppel-Halide
B: Mit [Pb], [Cu], etc.
55:Allochalkoselit-Gruppe

Lapis Classification

IV/K.05-080

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

Classification by Hölzel

5.LB.210

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

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

dunkelbraun

Streak color

braun

Diaphaneity (Transparency)

transparent

Lustre

Diamantglanz

max. Birefringence

0.100
Birefringence chart\! Allochalcoselite title=Birefringence chart Allochalcoselite

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

1.98

RI value β

2.01

RI value γ / ε

2.08

Ri mean

2.023

2V angle

Biaxial (+) 50°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

18.467

Cell parameters b (Å)

6.148

Cell parameters c (Å)

15.314

Cell parameters a/b or c/a

3.004

Cell parameters c/b

2.491

Cell parameters α

90°

Cell parameters β

119.28

Cell parameters γ

90°

Z

4

Volume (ų)

1516.544

X-Ray Powder Diffraction

3.86(80), 3.55(80), 3.08(100), 2.504(20), 1.710(30), 1.543(50), 1.448(30), 1.348(40)
XRD chart Allochalcoselite

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 - 4

VHN (Hardness Vickers)

130 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.65

4.606 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen (100)

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

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

Preface

Generation conditions

Fumarolenmineral

Rareness

Extrem selten

Author (Name, Year)

Vergasova & Krivovichev & Britvin & Filatov & Burns & Ananyev, 2005

References

Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva 134 (2005) (3), 70

Other languages

English

Allochalcoselite

French

Allochalcoselite

German

Allochalkoselit

Spanish

Alocalcoselita

Russian

Аллохалькоселит

Simplified Chinese

氯亚硒酸铅铜石

Traditional Chinese

氯亞硒酸鉛銅石

Alternative Name

German

Allochalcoselit

CNMNC (IMA)-Number

IMA 2004-025

CNMNC symbol

Symbol

Acc

Locations with GPS information

IDs

GUSID (Global unique identifier short form) z73sFGdZCEusupYzrWm8iA
GUID (Global unique identifier) 14ECBDCF-5967-4B08-ACBA-9633AD69BC88
Database ID 66