Deloneite-(Ce) Mineral Data + Say DELONEITE-(CE)


[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts]
See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM]
Mineral News was founded some twenty years ago and has developed a following of
avid mineral collectors seeking timely information about new finds and other items
of interest to the collector community. Articles are solicited from collector and scientific authors.

General Deloneite-(Ce) Information
Help on Chemical Formula: Chemical Formula: NaCa2SrCe(PO4)3F
Help on Composition: Composition: Molecular Weight = 634.79 gm
   Sodium       3.62 %  Na    4.88 % Na2O
   Strontium   13.80 %  Sr   16.32 % SrO
   Calcium     12.63 %  Ca   17.67 % CaO
   Cerium      22.07 %  Ce   25.85 % Ce2O3
   Phosphorus  14.64 %  P    33.54 % P2O5
   Oxygen      30.24 %  O
   Fluorine     2.99 %  F     2.99 % F
                 -   %  F    -1.26 % -O=F2
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCa2SrCe(PO4)3F
Help on Environment: Environment: Carbonitite igneous rocks.
Help on IMA Status: IMA Status: Approved IMA 1995 (Dana # Added)
Help on Locality: Locality: Mount Koashva, Khibina alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For B. N. Delone (Delaunay) (1890-1980), Russian mathematical crystallographer.
Help on Synonym: Synonym: IMA1995-036
 

Search for Deloneite-(Ce) Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.
  

Deloneite-(Ce) Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:0.73711
Help on Cell Dimensions: Cell Dimensions: a = 9.51, c = 7.01, Z = 2; V = 549.05 Den(Calc)= 3.84
Help on Crystal System: Crystal System: Trigonal - PyramidalH-M Symbol (3) Space Group: P 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.84(1), 2.753(0.4), 3.12(0.4),
 

Physical Properties of Deloneite-(Ce)

Help on Cleavage: Cleavage: [100] Fair, [001] Fair
Help on Color: Color: Bright yellow.
Help on Density: Density: 3.92 - 3.95, Average = 3.93
Help on Diaphaniety: Diaphaniety: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Deloneite-(Ce)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1747,KPDmeas= 0.1705,KC= 0.1701
Help on Optical Data: Optical Data: Uniaxial (-), e=1.66, w=1.682, bire=0.0220.
 

Calculated Properties of Deloneite-(Ce)

Help on Electron Density: Electron Density:

relectron=3.68 gm/cc
note: rDeloneite-(Ce) =3.94 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.00997
Boson Index = 0.99003
Help on Photoelectric: Photoelectric:

PEDeloneite-(Ce) = 126.94 barns/electron
U=PEDeloneite-(Ce) x relectron= 467.40 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 22,031.05 (Gamma Ray American Petroleum Institute Units)

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

Estimated Radioactivity from Deloneite-(Ce) - 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 / 7.86 cm 494,425 1.34E-05 22,031.05 7.24
100 gm / 3.65 cm 49,443 1.34E-06 2,203.10 0.72
10 gm / 1.69 cm 4,944 1.34E-07 220.31 0.07
1 gm / 7.86 mm 494 1.34E-08 22.03 0.01
0.1 gm / 3.65 mm 49 1.34E-09 2.20 0.00
0.01 gm / 1.69 mm 5 1.34E-10 0.22 0.00
0.001 gm / 0.79 mm 0 1.34E-11 0.02 0.00

Weight of pure Deloneite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.94 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 ( 1.10 % Th) From Sum REE Elements (22.07 % REE)
 

Deloneite-(Ce) Classification
Help on Dana Class: Dana Class: 41.8.1.9 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.8)where (A)5 (XO4)3 Zq
  (41.8.1)Dana Group
 
41.8.1.0 Apatite* Ca5(PO4)3(OH,F,Cl) P 63/m 6/m
 
41.8.1.1 Fluorapatite Ca5(PO4)3F P 63/m 6/m
 
41.8.1.2 Chlorapatite Ca5(PO4)3Cl P 63/m 6/m
 
41.8.1.3 Hydroxylapatite Ca5(PO4)3(OH) P 63/m 6/m
 
41.8.1.4 Carbonate-fluorapatite Ca5(PO4,CO3)3F P 63/m 6/m
 
41.8.1.5 Carbonate-hydroxylapatite Ca5(PO4,CO3)3(OH) P 63/m 6/m
 
41.8.1.6 Belovite-(Ce) (Sr,Ce,Na,Ca)5(PO4)3(OH) P 3 3
 
41.8.1.6a Belovite-(La)! (Sr,La,Ce,Ca)5(PO4)3(F,OH) P 3 3
 
41.8.1.6b Kuannersuite-(Ce)! Ba6Na2REE2(PO4)6FCl P 3 3
 
41.8.1.7 Strontium-apatite (Sr,Ca)5(PO4)3(F,OH) P 63/m 6/m
 
41.8.1.8 Fluorcaphite! (Ca,Sr,Ce,Na)5(PO4)3F P 63 6
 
41.8.1.9 Deloneite-(Ce) ! NaCa2SrCe(PO4)3F P 3 3
Help on Strunz Class: Strunz Class: VII/B.38-05 VII - Phosphates, Arsenates and Vanadates
  VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb
  VII/B.38 - Daqingshanite-(Ce) series
 
VII/B.38-05 Deloneite-(Ce) NaCa2SrCe(PO4)3F P 3 3
 
VII/B.38-10 Daqingshanite-(Ce) (Sr,Ca,Ba)3(Ce,La)(PO4)(CO3)3-x(OH,F)x R 3m, R 3m or R 32 Trig
 

Other Deloneite-(Ce) Information
Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.82,p820,1997) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Deloneite-(Ce) :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

Search for Deloneite-(Ce) using:

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

Visit our Advertisers for Deloneite-(Ce) :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Deloneite-(Ce) Mineral Data :

Ask about Deloneite-(Ce) 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 Espaņol

Print or Cut-and-Paste your Deloneite-(Ce) Specimen Label here :

Deloneite-(Ce)

NaCa2SrCe(PO4)3F
Dana No: 41.8.1.9 Strunz No: VII/B.38-05
Locality:

 

Notes:

 
 
   
 
Go To Webmineral Home Crystallography X-Ray D-Spacing Table Chemical Composition
Dana Classification Strunz Classification Table of Mineral Properties Alphabetical Listing of Minerals
Search Webmineral Photo Gallery of Mineral Images Help Files Links