Clinobehoite Mineral Data

Clinobehoite Mineral Data

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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

IMA Status:

Approved IMA 1989

Locality:

Link to MinDat.org Location Data.

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),

Physical Properties of Clinobehoite

Cleavage:

[???] Perfect

Color:

Colorless, White.

Density:

1.93

Diaphaniety:

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

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:

r_electron=1.97 gm/cc
note: r_Clinobehoite=1.93 gm/cc.

Fermion Index

Fermion Index = 0.20981
Boson Index = 0.79019

Photoelectric:

PE_Clinobehoite= 0.33 barns/electron
U=PE_Clinobehoite x r_electron= 0.65 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Clinobehoite is Not Radioactive

Clinobehoite Classification

Dana Class:

6.2.3.1 (6)Hydroxides and Oxides Containing Hydroxyl

(6.2)where X++ (OH)2

(6.2.3)Dana Group

6.2.3.1 Clinobehoite Be(OH)2 P 2₁ 2

Strunz Class:

IV/F.01-30 IV - Oxides

IV/F - Hydroxides and oxidic hydrates, water-bearing oxides with layered structure

IV/F.01 - Sassolite - Clinobehoite series

IV/F.01-10 Sassolite H3BO3 P1 1

IV/F.01-20 Behoite Be(OH)2 P 2₁2₁2₁ 2 2 2

IV/F.01-30 Clinobehoite Be(OH)2 P 2₁ 2

Other Clinobehoite Information

References:

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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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

Clinobehoite

Be(OH)2
Dana No: 6.2.3.1 Strunz No: IV/F.01-30
Locality:

Notes: