Hambergite Mineral Data

General Hambergite Information

Chemical Formula:

Be2BO3(OH)

Composition:

Molecular Weight = 93.84 gm

Beryllium 19.21 % Be 53.31 % BeO

Boron 11.52 % B 37.09 % B₂O₃

Hydrogen 1.07 % H 9.60 % H₂O

Oxygen 68.20 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Be₂(BO₃)(OH)

Environment:

Accessory mineral in granite pegmatites.

IMA Status:

Valid Species (Pre-IMA) 1890

Locality:

Helgeroa, Langesundsfjord, Norway. Link to MinDat.org Location Data.

Name Origin:

Named for Axel Hamberg (1863-1933), Swedish mineralogist and geographer.

Name Pronunciation:

Hambergite + Pronunciation

Synonym:

ICSD 81591

PDF 17-475

Hambergite Image

Images:

Hambergite

Comments: Clear colorless prismatic crystal of hambergite.
Location: Imalo, near Mania, Madagascar. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hambergite Crystallography

Axial Ratios:

a:b:c =0.798:1:0.3622

Cell Dimensions:

a = 9.76, b = 12.23, c = 4.43, Z = 8; V = 528.79 Den(Calc)= 2.36

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P bca

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

By Intensity(I/I_o): 3.82(1), 3.13(0.9), 4.53(0.8),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 0 1 0) ( 0 2 1) ( 1 1 0) ( 1 0 0)

Warning: this large pop-up is very compute intensive and may not work well with some computers.

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Burns P C , Novak M , Hawthorne F C , The Canadian Mineralogist , 33 (1995) p.1205-1213, Fluorine-hydroxyl variation in hambergite: A crystal-structure study, Note: sample HM1, Locality: Himalaya mine, California, USA

View Additional jPOWD Structure files for Hambergite
[1] [2] [3] [4]

Physical Properties of Hambergite

Cleavage:

{010} Perfect, {100} Good

Color:

Colorless, Gray white, Yellowish white, White.

Density:

2.372

Diaphaneity:

Transparent to Translucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

7.5 - Garnet

Luminescence:

Non-fluorescent.

Luster:

Vitreous - Dull

Streak:

white

Optical Properties of Hambergite

Gladstone-Dale:

CI meas= -0.035 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.04 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.25,KPDmeas= 0.2487,KC= 0.2403
Ncalc = 1.57

Optical Data:

Biaxial (+), a=1.55, b=1.59, g=1.63, bire=0.0800

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Hambergite

Electron Density:

Bulk Density (Electron Density)=2.33 gm/cc
note: Specific Gravity of Hambergite =2.37 gm/cc.

Fermion Index:

Fermion Index = 0.21
Boson Index = 0.79

Photoelectric:

PE_Hambergite= 0.33 barns/electron
U=PE_Hambergite x rElectron Density= 0.76 barns/cc.

Radioactivity:

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

Hambergite Classification

Dana Class:

25.01.01.01 (25)Anhydrous Borates Containing Hydroxyl or Halogen

(25.01)Dana Type

(25.01.01)Dana Group

25.01.01.01 Hambergite Be2BO3(OH) P bca 2/m 2/m 2/m

Strunz Class:

06.AB.05 06 - BORATES

06.A - Monoborates

06.AB -BO3, with additional anions; 1(D) + OH, etc.

06.AB.05 Hambergite Be2BO3(OH) P bca 2/m 2/m 2/m

Other Hambergite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Hambergite :
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 - Tradeshop.com - The Rainbow of Gems
16 - WWW-MINCRYST

Search for Hambergite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Hambergite :

A Bijoux Google Search for Hambergite
Adam's Minerals Google Search for Hambergite
Cape Minerals Google Search for Hambergite
Dakota Matrix Minerals Google Search for Hambergite
Excalibur Mineral Corp. Google Search for Hambergite
Exceptional Minerals Google Search for Hambergite
John Betts Fine Minerals Search for Hambergite
McDougall Minerals Google Search for Hambergite
Mineral News Website Link
Rock and Mineral Shows Google Search for Hambergite
Weinrich Minerals, Inc. Google Search for Hambergite

Ask about Hambergite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Hambergite

Be2BO3(OH)
Dana No: 25.01.01.01 Strunz No: 06.AB.05
Locality:

Notes: