General Information
|
 Chemical Formula: |
Mg3(BO3)(F,OH)3 |
| Composition: |
Molecular Weight = 168.72 gm) |
| |
|
| |
|
| |
|
| |
|
| |
|
| Empirical Formula: |
Mg3(BO3)F1.5(OH)0.5 |
| |
Classification
|
| Dana Class: |
25.1.2.1 (25)Anhydrous Borates Containing Hydroxyl or Halogen |
| |
(25.1)Dana Type |
| |
(25.1.2)Dana Group |
| Strunz Class: |
V/G.05-10 V - Nitrates, Carbonates and Borates |
| |
V/G - "Insel" borates [BO3]3- "inseln" |
| |
V/G.05 - Fluoborite - Painite series |
| |
Crystallography
|
| Axial Ratios: |
a:c = 1:0.34905 |
| Cell Dimensions: |
a = 8.924, c = 3.115, Z = 2; V = 214.84 Den(Calc)= 3.52 |
| Crystal System: |
Hexagonal - Dipyramidal H-M Symbol (6/m) Space Group: P63/m |
| X Ray Diffraction: |
By Intensity(I/Io): 4.41(1) 2.41(0.95) 2.12(0.9) |
| |
Physical Properties
|
| Cleavage: |
[0001] Indistinct |
| Color: |
colorless, violet, or white. |
| Density: |
2.89 |
| Diaphaniety: |
Transparent |
| Hardness: |
3.5 - Copper Penny |
| Luminescence: |
Non-fluorescent. |
| Luster: |
Vitreous - Silky |
| Streak: |
white |
| |
Optical Properties
|
| Optical Data: |
Uniaxial (-), e=1.534, w=1.57, bire=0.0360. |
| |
Other Information
|
| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other data for Fluoborite :
1 -Athena Mineralogy
2 - Crocoite.com Mineral Locations
3 - EUROmin Project
4 - Franklin Minerals(Palache)
5 -MinDat.org Location Data
6 -MinMax
7 - Scandinavian mineral gallery
8 -WWW-MINCRYST
9 -École des Mines de Paris
Search for Fluoborite using:
[ALTAVISTA]
[All-The-Web]
[EXCITE]
[GO.COM]
[GOOGLE]
[LYCOS]
[LookSmart]
[MAMMA]
[MSN.COM]
[NORTHERN LIGHT]
[YAHOO]
Visit our Advertisers for Fluoborite :
The Arkenstone Fine Minerals
John Betts Fine Minerals
Dakota Matrix Minerals
Exceptional Minerals
Fabre Minerals
OsoSoft Minerals
Rare Minerals
Tsumeb Minerals
Dan Weinrich Fine Minerals
|
| |
| |
|
| |
Pronunciation Guide 
