Clinobehoite Mineral Data

General Clinobehoite Information

Chemical Formula:

Be(OH)2

Composition:

Molecular Weight = 43.03 gm

Beryllium 20.95 % Be 58.13 % BeO

Hydrogen 4.69 % H 41.87 % H₂O

Oxygen 74.37 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Be(OH)₂

Environment:

Hydrothermally altered zones in desilicated pegmatites.

IMA Status:

Approved IMA 1989

Locality:

Malyshev deposit, Asbest district, near Yekaterinburg (Sverdlovsk), Ural Mountains, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for its monoclinic symmetry and relation to behoite.

Synonym:

ICSD 65723

PDF 46-1366

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Clinobehoite Crystallography

Axial Ratios:

a:b:c =2.3224:1:1.8221

Cell Dimensions:

a = 11.02, b = 4.745, c = 8.646, Z = 12; beta = 98.94° V = 446.61 Den(Calc)= 1.92

Crystal System:

Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 2₁

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.714(1), 3.61(0.9), 5.43(0.8),

Crystal Structure:

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Nadezhina T N , Pushcharovsky D Y , Rastsvetaeva R K , Voloshin A V , Burshtein I F , Soviet Physics Doklady , 34 (1989) p.187-189, Crystal structure of a new natural form of Be(OH)2, Locality: Ural Mountains, Russia

Physical Properties of Clinobehoite

Cleavage:

{???} Perfect

Color:

Colorless, White.

Density:

1.93

Diaphaneity:

Transparent to Translucent

Hardness:

2-3 - Gypsum-Calcite

Luster:

Vitreous - Pearly

Streak:

white

Optical Properties of Clinobehoite

Gladstone-Dale:

CI meas= 0.001 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2832,KPDmeas= 0.2817,KC= 0.2819
Ncalc = 1.54

Optical Data:

Biaxial (-), a=1.539, b=1.544, g=1.548, bire=0.0090, 2V(Calc)=82, 2V(Meas)=80-83.

Calculated Properties of Clinobehoite

Electron Density:

Bulk Density (Electron Density)=1.97 gm/cc
note: Specific Gravity of Clinobehoite =1.93 gm/cc.

Fermion Index:

Fermion Index = 0.2
Boson Index = 0.8

Photoelectric:

PE_Clinobehoite= 0.33 barns/electron
U=PE_Clinobehoite x rElectron Density= 0.65 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clinobehoite is Not Radioactive

Clinobehoite Classification

Dana Class:

06.02.03.01 (06)Hydroxides and Oxides Containing Hydroxyl

(06.02)where X++ (OH)2

(06.02.03)Dana Group

06.02.03.01 Clinobehoite Be(OH)2 P 2₁ 2

Strunz Class:

04.FA.05b 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.F - Hydroxides (without V or U)

04.FA -Hydroxides with OH, without H2O; corner-sharing tetrahedra

04.FA.05b Clinobehoite Be(OH)2 P 2₁ 2

Other Clinobehoite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Am.Min.,Vol.76,p666,1991) OPTIC PROP.(Am.Min.,Vol.76,p666,1991)

See Also:

Links to other databases for Clinobehoite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Clinobehoite Specimen Label here :

Clinobehoite

Be(OH)2
Dana No: 06.02.03.01 Strunz No: 04.FA.05b
Locality:

Notes: