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Clinobehoite (Klinobehoit)

Collectors Summary

Color farblos, weiß
Streak color weiß
Hardness (Mohs) 2.5
Cleavages {???} vollkommen
Solubility +++ Säuren, NaOH
Crystal System monoklin, P21

Chemism

Chemical formula

Be(OH)2

Chemical composition

Beryllium, Sauerstoff, Wasserstoff

Unit weight: 43.0269363 u; Number of atoms in the formula: 5

Info

Empirical formula:

Be(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

4.69

2

40.00

1.0079470

2.0158940

Beryllium

Be

20.95

1

20.00

9.0121823

9.0121823

Oxygen

O

74.37

2

40.00

15.9994300

31.9988600

Analysis wt%

BeO : 58.13, H2O : 41.87 (Ref: berechnet)

Strunz 9th edition incl. updates

4.FA.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
F: Hydroxide (ohne V oder U)
A: Hydroxide mit OH, ohne H2O; eckenverknüpfte Tetraeder
05:Behoit-Gruppe

Lapis Classification

IV/F.01-030

IV: OXIDE
F: Hydroxide und oxidische Hydrate (wasserhaltige Oxide mit Schichtstruktur)

Classification by Hölzel

4.FA.400

4: OXIDES
F: Hydroxides and Hydrates (without V and U)
A: Dihydroxides Me(OH)2
4: Clinobehoite-Group

Dana 8th edition

06.02.03.01

06: Hydroxides and Oxides Containing Hydroxyl
02: Hydroxides and Oxides Containing Hydroxyl where X++ (OH)2

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.009

Birefringence chart\! Clinobehoite title=Birefringence chart Clinobehoite

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

1.539

RI value β

1.544

RI value γ / ε

1.548

Ri mean

1.544

2V angle

Biaxial (-) 80°

Crystallography

Crystal System

monoklin

Class (H-M)

2

Space Group number

4

Space Group

P21

Cell parameters a (Å)

11.020

Cell parameters b (Å)

4.745

Cell parameters c (Å)

8.646

Cell parameters a/b or c/a

2.322

Cell parameters c/b

1.822

Cell parameters α

90°

Cell parameters β

98.93

Cell parameters γ

90°

Z

12

Volume (ų)

446.618

X-Ray Powder Diffraction

5.43(80),
3.98(60),
3.76(70),
3.61(90),
3.16(70),
2.714(100),
2.436(60),
2.306(70)

XRD chart Clinobehoite

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)

2.5

Density (g/cm³)

1.93

1.92 ( ρ calc. Mineralienatlas )

Cleavages

{???} vollkommen

Instability

+++ Säuren, NaOH

Preface

Author (Name, Year)

Voloshin & Pakhomovskiy & Rogatchev & Nadezhina & Pustscharovskiy & Ba

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H301: Giftig bei Verschlucken., H315: Verursacht Hautreizungen., H317: Kann allergische Hautreaktionen verursachen., H319: Verursacht schwere Augenreizung., H330: Lebensgefahr bei Einatmen., H335: Kann die Atemwege reizen., H350i: Kann bei Einatmen Krebs erzeugen., H372: Schädigt die Organe bei längerer oder wiederholter Exposition., H411: Giftig für Wasserorganismen, mit langfristiger Wirkung.

References

Mineralogicheskiy Zhurnal 11 (1989) (5), 88

Other languages

French

Clinobehoite

English

Clinobehoite

Spanish

Clinobehoíta

German

Klinobehoit

Russian

Клинобехоит

Alternative Name

Clinobehoit

CNMNC (IMA)-Number

IMA 1988-024

CNMNC symbol

Symbol

Cbht

Locations with GPS information

IDs

GUSID (Global unique identifier short form) G5ZmL6MM202huisDR2nBOw
GUID (Global unique identifier) 2F66961B-0CA3-4DDB-A1BA-2B034769C13B
Database ID 1972