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Okruschite

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Okruschit
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Okruschit
Steinbruch Hartkoppe, Sailauf, Spessart. BB: 1,0 mm.
Copyright: Mabu; Contribution: Mabu
Collection: Mabu
Location: Deutschland/Bayern/Unterfranken, Bezirk/Aschaffenburg, Landkreis/Sailauf/Hartkoppe (Steinbruch Fuchs)
Mineral: Okruschite
Image: 1477685486
License: Usage for Mineralienatlas project only
Okruschit

Steinbruch Hartkoppe, Sailauf, Spessart. BB: 1,0 mm.

Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2016-10-28
Locality: Hartkoppe (Steinbruch Fuchs) / Sailauf / Aschaffenburg, Landkreis / Unterfranken, Bezirk / Bayern / Deutschland

Collectors Summary

Color weiß
Lustre Glasglanz
Crystal System monoklin, C2/c
Morphology tafelige Aggregate bis zu 0.15 × 0.3 × 0.3 mm

Chemism

Chemical formula

Ca2Mn2+5Be4(AsO4)6(OH)4·6H2O

Chemical composition

Arsen, Beryllium, Calcium, Mangan, Sauerstoff, Wasserstoff

Unit weight: 1400.5331627 u; Number of atoms in the formula: 67

Info

Empirical formula:

Ca2Mn5Be4(AsO4)6(OH)4·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.15

16

23.88

1.0079470

16.1271520

Beryllium

Be

2.57

4

5.97

9.0121823

36.0487292

Oxygen

O

38.84

34

50.75

15.9994300

543.9806200

Calcium

Ca

5.72

2

2.99

40.0784000

80.1568000

Manganese

Mn

19.61

5

7.46

54.9380499

274.6902495

Arsenic

As

32.10

6

8.96

74.9216020

449.5296120

Strunz 9th edition incl. updates

8.DA.10

8: Phosphate, Arsenate, Vanadate
D: Phosphate, mit weiteren Anionen, mit H2O
A: Mit kleinen (und gelegentlich größeren) [Kationen]
10:Roscherit-Gruppe

Lapis Classification

VII/D.01-062

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
D: Wasserhaltige Phosphate, mit fremden Anionen
1: Vorwiegend kleine Kationen: Be-Li

IMA status

anerkannt - CNMNC Newsletter No. 18, Dezember 2013

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß

Diaphaneity (Transparency)

halbdurchsichtig

Lustre

Glasglanz

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

16.32

Cell parameters b (Å)

12.04

Cell parameters c (Å)

6.92

Cell parameters a/b or c/a

1.355

Cell parameters c/b

0.575

Cell parameters α

90°

Cell parameters β

94.8°

Cell parameters γ

90°

Z

2

Volume (ų)

1354.961

Crystal structure

Roscherit-Gruppe

X-Ray Powder Diffraction

9.68(39), 4.95(34), 4.17(34), 3.25(100), 3.11(32), 2.841(27), 2.711(26), 1.726(26)

XRD chart Okruschite

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

Morphology

tafelige Aggregate bis zu 0.15 × 0.3 × 0.3 mm

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

3.33(2) gem. 3.340 ber.

3.433 ( ρ calc. Mineralienatlas )

Chemical Properties and Tests

IR-Spektrum beschrieben, siehe Nikita V. Chukanov, Gerhard Möhn, Igor V. Pekov, Dmitriy I. Belakovskiy, Yana V. Bychkova, Vladislav V. Gurzhiy, Joachim A. Lorenz: Okruschite, Ca2Mn2+ 5Be4(AsO4)6(OH)4 • 6H2O, a new roscherite-group mineral from Sailauf, Bavaria, Germany. Eur J Mineral, Vol.26 (2014) S. 589-595.

(Co-)Type locality

(Co-)Type locality

Deutschland/Bayern/Unterfranken, Bezirk/Aschaffenburg, Landkreis/Sailauf/Hartkoppe (Steinbruch Fuchs)

Type material

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

Collection number of type material

4434/1

Paragenesis of type material

Braunit, Mn-haltiger Calcit, Arseniosiderit

Preface

Name from

Professor Martin Okrusch

Author (Name, Year)

Nikita V. Chukanov, Gerhard Möhn, Igor V. Pekov, Dmitriy I. Belakovskiy, Yana V. Bychkova, Vladislav V. Gurzhiy, Joachim A. Lorenz (2014)

References

Nikita V. Chukanov, Gerhard Möhn, Igor V. Pekov, Dmitriy I. Belakovskiy, Yana V. Bychkova, Vladislav V. Gurzhiy, Joachim A. Lorenz: Okruschite, Ca2Mn2+ 5Be4(AsO4)6(OH)4 • 6H2O, a new roscherite-group mineral from Sailauf, Bavaria, Germany. Eur J Mineral, Vol.26 (2014) S. 589-595.

Chukanov, N.V., Möhn, G., Pekov, I.V., Belakovskiy, D.I., Bychkova, Y.V., Lorenz, J.A. und Gurzhiy, V.V. (2013) Okruschite, IMA 2013-097. CNMNC Newsletter No. 18, December 2013, page 3257; Mineralogical Magazine, 77, 3249-3258.

Other languages

German

Okruschit

English

Okruschite

CNMNC (IMA)-Number

IMA 2013-097

CNMNC symbol

Symbol

Okr

Locations with GPS information

IDs

GUSID (Global unique identifier short form) YnB4Vdl26km4TEDNx2Uc6Q
GUID (Global unique identifier) 55787062-76D9-49EA-B84C-40CDC7651CE9
Database ID 7713