'._('einklappen').'
 

Dravertite (Dravertit)

Pictures (1 Images total)

Dravertite
Views (Image: 1476877639): 551
Dravertite

Sony Alpha 7R ii, bellows, Mitutoyo M Plan 20x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control. Light blue crystalline crusts of Dravertite. ID confirmed by Igor Peko...

Collection: Stephan Wolfsried
Copyright: Stephan Wolfsried
Contribution: Stefan 2016-10-19
Locality: Arsenatnaya Fumarole / zweiter Schlackenkegel / nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland

Collectors Summary

Color hellblau, farblos, hellbraun
Lustre Glasglanz
Hardness (Mohs) 3.5
Cleavages unvollkommen
Fracture uneben
Crystal System monoklin, P21/n
Morphology Dravertite tritt als rohe Kristalle bis zu 0,08 mm auf, bildet kompakte Cluster oder sphärolithisch Krusten bis zu 5 x 5 cm2 Fläche und bis zu 1 cm dick auf Basalt-Schlacke

Chemism

Chemical formula

CuMg(SO4)2

Empirical formula (analysis)

Mg0.79Mn0.01Cu1.14Zn0.09S1.99O8

Chemical composition

Kupfer, Magnesium, Sauerstoff, Schwefel

Unit weight: 289.885790899 u; Number of atoms in the formula: 12.02

Info

Empirical formula:

Mg0.79Mn0.01Cu1.14Zn0.09S1.99O8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

44.15

8

66.56

15.9994300

127.9954400

Magnesium

Mg

6.62

0.79

6.57

24.3050600

19.2009974

Sulfur

S

22.01

1.99

16.56

32.0655000

63.8103450

Manganese

Mn

0.19

0.01

0.08

54.9380499

0.5493805

Copper

Cu

24.99

1.14

9.48

63.5463000

72.4427820

Zinc

Zn

2.03

0.09

0.75

65.4094000

5.8868460

Analysis wt%

MgO : 11.00,
MnO : 0.16,
CuO : 31.16,
ZnO : 2.62,
SO3 : 54.76,
Total : 99.72 wt.%

IMA status

anerkannt - CNMNC Newsletter 25, Juni 2015

Mineral status

anerkanntes Mineral

Optical Properties

Color

hellblau, farblos, hellbraun

Diaphaneity (Transparency)

transparent (dünn), durchscheinend

Lustre

Glasglanz

max. Birefringence

0.039

Birefringence chart\! Dravertite title=Birefringence chart Dravertite

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 = 1.624(3)

RI value β

β = 1.661(3)

RI value γ / ε

γ = 1.663(3)

Ri mean

1.649

2V angle

Biaxial(-) 35(10)° (gemessen)

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/n

Cell parameters a (Å)

4.8141(3)

Cell parameters b (Å)

8.4443(5)

Cell parameters c (Å)

6.7731(4)

Cell parameters a/b or c/a

0.57

Cell parameters c/b

0.802

Cell parameters α

90°

Cell parameters β

94.598(5)º

Cell parameters γ

90°

Z

2

Volumne (ų)

274.452

Kristall structure

Chemisch und strukturell verwandt mit Chalcocyanit; Struktur bestimmt

X-Ray Powder Diffraction

4.175(68), 3.666(64), 3.579(63), 3.443(59), 2.719(41), 2.637(100), 2.430(68), 1.791(24)

XRD chart Dravertite

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

Morphology

Dravertite tritt als rohe Kristalle bis zu 0,08 mm auf, bildet kompakte Cluster oder sphärolithisch Krusten bis zu 5 x 5 cm2 Fläche und bis zu 1 cm dick auf Basalt-Schlacke

Physical Properties

Hardness (Mohs)

3.5

Density (g/cm³)

3.508 (berechnet)

3.508 ( ρ calc. Mineralienatlas )

Cleavages

unvollkommen

Fracture

uneben

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

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

Type material

Fersman Mineralogical Museum, Russian Academy of Sciences, Moskau, Russland

Collection number of type material

4674/1

Paragenesis of type material

Arsenatnaya fumarole: Dolerophanit, Euchlorin, Tenorit, Hämatit, Langbeinit, Steklit, Fedotovit, Wulffit, Anhydrit und Anglesit

Yadovitaya fumarole: Euchlorin, Chalcocyanit, Steklit, Alumoklyuchevskit, Piypit, Parawulffit, Cryptochalcit, Dolerophanit, Hämatit, Tenorit, Vergasovait, Cupromolybdit, Yaroshevskit end Ziesit

Preface

Author (Name, Year)

Igor V. Pekov, Natalia V. Zubkova, Atali A. Agakhanov, Vasiliy O. Yapaskurt, Nikita V. Chukanov, Dmitry I. Belakovskiy, Evgeny G. Sidorov und Dmitry Y. Pushcharovsky (2015)

References

Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Yapaskurt, V.O., Chukanov, N.V., Belakovskiy, D.I., Sidorov, E.G. and Pushcharovsky, D.Y. (2015) Dravertite, IMA 2014-104. CNMNC Newsletter No. 25, June 2015, page 530; Mineralogical Magazine, 79, 529-535.

Igor V. Pekov, Natalia V. Zubkova, Atali A. Agakhanov, Vasiliy O. Yapaskurt, Nikita V. Chukanov, Dmitry I. Belakovskiy, Evgeny G. Sidorov, Dmitry Y. Pushcharovsky - Dravertite, CuMg(SO4)2, a new mineral species from the Tolbachik volcano, Kamchatka, Russia - European Journal of Mineralogy; First Published on October 17, 2016

Other languages

German

Dravertit

English

Dravertite

Russian

Дравертит

IMA Number

IMA 2014-104

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Дравертит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Dravertit
Crystal-Treasure.com - search for: Dravertit
Bosse - search for: Dravertit

Locations with GPS information




Notice: "Undefined variable: ub"