Haleniusite-(La) Mineral Data

Haleniusite-(La) Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Dan Weinrich Fine Minerals
[Fine Minerals] [What's New] [Mineral Galleries] [My Collection] [Mineral Auctions]
Dan Weinrich Fine Minerals
Full-time professional mineral dealer with over 31 years experience in mineral collecting
And 15 years selling mineral specimens on the internet and at major mineral shows


General Haleniusite-(La) Information

Help on Chemical Formula: Chemical Formula: (La,Ce)OF
Help on Composition: Composition: Molecular Weight = 174.90 gm
   Lanthanum      36.53 %  La   42.84 % La2O3
   Cerium         35.25 %  Ce   41.29 % Ce2O3
   Praeseodymium   1.61 %  Pr    1.89 % Pr2O3
   Neodymium       6.60 %  Nd    7.70 % Nd2O3
   Oxygen          9.15 %  O
   Fluorine       10.86 %  F    10.86 % F
                    -   %   F    -4.57 % -O=F2    
                 ______        ______ 
                 100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: La0.46Ce0.44Nd0.08Pr0.02OF
Help on Environment: Environment: Coarsely crystalline bastnäsite-(La), now largely replaced by håleniusite-(La),
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Mine dumps of Bastnäs deposit, Skinnskatteberg District, Västmanland County, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Ulf Hålenius (1951-), head of the Department of Mineralogy of the Swedish Museum of Natural History, for his contributions to the spectroscopy of minerals and the mineral sciences in general.
Help on Synonym: Synonym: IMA2003-028
 

Haleniusite-(La) Image

Click Here for Larger Haleniusite-(La) Image in a New Browser Window Images:
Click Here for Larger Haleniusite-(La) Image

Haleniusite-(La)

Comments: Secondary electron microscope (SEM) image showing tabular brochantite crystals growing on a featureless håleniusite-(La) substrate. (CanMin 42:1099).
Location: Mine dumps of Bastnäs deposit, Skinnskatteberg District, Västmanland County, Sweden. Scale: Scale Bar 100 µ-m.
© Canadian Mineralogist
Click Here for Larger Haleniusite-(La) Image in a New Browser Window Images:
Click Here for Larger Haleniusite-(La) Image

Haleniusite-(La)

Comments: Back-scattered electron (BSE) micrograph of a section of bastnäsite-(La) showing partial alteration to håleniusite-(La), which is white on the image. Black areas are voids. (CanMin 42:1099).
Location: Mine dumps of Bastnäs deposit, Skinnskatteberg District, Västmanland County, Sweden. Scale: Scale Bar 100 µ-m.
© Canadian Mineralogist

Haleniusite-(La) Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 5.6282, Z = 4; V = 178.28 Den(Calc)= 6.52
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.252(1)(111), 1.991(0.56)(220), 1.697(0.39)(311),2.815(0.26)(200), 1.292(0.15)(331),
Click Here for Large Haleniusite-(La) Structure Window 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


Holtstam D , Grins J , Nysten P , The Canadian Mineralogist , 42 (2004) p.1097-1103, Haleniusite-(La) from the Bastnas deposit, Vastmanland, Sweden:, A new REE oxyfluoride mineral species, Locality: Bastnas deposit, Vastmanland, Sweden

 

Physical Properties of Haleniusite-(La)

Help on Cleavage: Cleavage: Unknown, Unknown, Unknown
Help on Color: Color: Light yellow.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Powdery - Forms a loose, poorly-coherent pulverulent mass.
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: pale yellow
 

Optical Properties of Haleniusite-(La)

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.077 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1304,KC= 0.1412
Ncalc = 1.92
Help on Optical Data: Optical Data: Isotropic, n=1.85.
 

Calculated Properties of Haleniusite-(La)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.57 gm/cc
note: Specific Gravity of Haleniusite-(La) =6.52 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEHaleniusite-(La) = 424.16 barns/electron
U=PEHaleniusite-(La) x relectron=2,362.91 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 72,901.47 (Gamma Ray American Petroleum Institute Units)
Concentration of Haleniusite-(La) per GRapi unit = 13.72 (PPM)

Haleniusite-(La) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 417.23 ±104.31 grams of pure Haleniusite-(La) .

Estimated Radioactivity from Haleniusite-(La) - weak
Specimen
Size
Weight/Volume
(Sphere) *		 Calculated
Activity
Bequerols
(Bq)		 Calculated
Activity
Curies (Ci)		 Estimated
Activity
GR(api)		 Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 6.64 cm 1,791,778 4.84E-05 72,901.47 23.97
100 gm / 3.08 cm 179,178 4.84E-06 7,290.15 2.40
10 gm / 1.43 cm 17,918 4.84E-07 729.01 0.24
1 gm / 6.64 mm 1,792 4.84E-08 72.90 0.02
0.1 gm / 3.08 mm 179 4.84E-09 7.29 0.00
0.01 gm / 1.43 mm 18 4.84E-10 0.73 0.00
0.001 gm / 0.66 mm 2 4.84E-11 0.07 0.00

Weight of pure Haleniusite-(La) in grams (gm) and Calculated Diameter of a Sphere with a Density of 6.52 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 4.00 % Th) From Sum REE Elements (79.99 % REE)
 

Haleniusite-(La) Classification
Help on Dana Class: Dana Class: 10.02.10.01 (10)Oxyhalides and Hydroxyhalides
  (10.02)where A (O,OH) Xq
  (10.02.10)Dana Group
 
10.02.10.01 Haleniusite-(La)! (La,Ce)OF F m3m 4/m 3 2/m
Help on Strunz Class: Strunz Class: 03.DE.05 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DE -With Rare-Earth Elements
 
03.DE.05 Haleniusite-(La)! (La,Ce)OF F m3m 4/m 3 2/m
 

Other Haleniusite-(La) Information
Help on References: References: NAME( CanMin, 42:1097) PHYS. PROP.(CanMin, 42:1097) OPTIC PROP.(CanMin, 42:1097)
Help on See Also: See Also: Links to other databases for Haleniusite-(La) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Haleniusite-(La) using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Haleniusite-(La) :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Haleniusite-(La) Mineral Data :

Ask about Haleniusite-(La) 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 Haleniusite-(La) Specimen Label here :

Haleniusite-(La)

(La,Ce)OF
Dana No: 10.02.10.01 Strunz No: 03.DE.05
Locality:

 

Notes: