Belovite-(Ce) Mineral Data

Belovite-(Ce) Mineral Data +

General Belovite-(Ce) Information

Chemical Formula:

(Sr,Ce,Na,Ca)5(PO4)3(OH)

Composition:

Molecular Weight = 746.52 gm

Sodium 2.31 % Na 3.11 % Na₂O

Strontium 26.41 % Sr 31.23 % SrO

Calcium 2.68 % Ca 3.76 % CaO

Cerium 28.15 % Ce 32.98 % Ce₂O₃

Phosphorus 12.45 % P 28.52 % P₂O₅

Hydrogen 0.14 % H 1.21 % H₂O

Oxygen 27.86 % O

______ ______

100.00 % 100.80 % = TOTAL OXIDE

Empirical Formula:

5(Sr_0.45)5(Ce_0.3)5(Na_0.15)5(Ca_0.1)(PO₄)₃(OH)

Environment:

Alkalic igneous rocks.

IMA Status:

Valid Species (Pre-IMA) 1955

Locality:

Mt. Karnasurt, Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for Nikolai Vassilievich Belov (1891-1982), mineralogist and crystallographer, Institute of Crystallography, Moscow, Russia.

Synonym:

ICSD 89897

PDF 31-1350

Belovite-(Ce) Image

Images:

Belovite-(Ce)

Comments: Light yellow vitreous crystals of belovite-Ce up to 2 mm.
Location: Malyi Punkaruaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: 2.5x3 cm.
© John Veevaert

Belovite-(Ce) Crystallography

Axial Ratios:

a:c = 1:0.74298

Cell Dimensions:

a = 9.692, c = 7.201, Z = 2; V = 585.80 Den(Calc)= 4.23

Crystal System:

Trigonal - PyramidalH-M Symbol (3) Space Group: P 3

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

By Intensity(I/I_o): 2.87(1), 1.9(0.8), 1.998(0.8),

Crystal Structure:

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Rakovan J F , Hughes J M , The Canadian Mineralogist , 38 (2000) p.839-845, Strontium in the apatite structure: Strontian fluorapatite and belovite-(Ce)

Physical Properties of Belovite-(Ce)

Cleavage:

[???] Indistinct

Color:

Honey yellow.

Density:

4.19

Diaphaniety:

Transparent

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Hardness:

5 - Apatite

Luster:

Vitreous - Greasy

Streak:

white

Optical Properties of Belovite-(Ce)

Gladstone-Dale:

CI meas= 0.048 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.057 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1537,KPDmeas= 0.1551,KC= 0.1629

Optical Data:

Uniaxial (-), e=1.64, w=1.66, bire=0.0200.

Calculated Properties of Belovite-(Ce)

Electron Density:

r_electron=3.83 gm/cc
note: r_{Belovite-(Ce)}=4.19 gm/cc.

Fermion Index

Fermion Index = 0.01865
Boson Index = 0.98135

Photoelectric:

PE_{Belovite-(Ce)}= 173.97 barns/electron
U=PE_{Belovite-(Ce)} x r_electron= 665.44 barns/cc.

Radioactivity:

GRapi = 27,414.92 (Gamma Ray American Petroleum Institute Units)

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

**Estimated Radioactivity from Belovite-(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 / 7.70 cm	630,641	1.70E-05	27,414.92	9.01
100 gm / 3.57 cm	63,064	1.70E-06	2,741.49	0.90
10 gm / 1.66 cm	6,306	1.70E-07	274.15	0.09
1 gm / 7.70 mm	631	1.70E-08	27.41	0.01
0.1 gm / 3.57 mm	63	1.70E-09	2.74	0.00
0.01 gm / 1.66 mm	6	1.70E-10	0.27	0.00
0.001 gm / 0.77 mm	1	1.70E-11	0.03	0.00

Weight of pure Belovite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.19 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 ( 1.41 % Th) From Sum REE Elements (28.15 % REE)

Belovite-(Ce) Classification

Dana Class:

41.8.1.6 (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

Strunz Class:

VII/B.39-110 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.39 - Apatite - Pyromorphite group

VII/B.39-10 Fluorapatite Ca5(PO4)3F P 6₃/m 6/m

VII/B.39-20 Chlorapatite Ca5(PO4)3Cl P 6₃/m 6/m

VII/B.39-30 Hydroxylapatite Ca5(PO4)3(OH) P 6₃/m 6/m

VII/B.39-40 Carbonate-hydroxylapatite Ca5(PO4,CO3)3(OH) P 6₃/m 6/m

VII/B.39-50 Carbonate-fluorapatite Ca5(PO4,CO3)3F P 6₃/m 6/m

VII/B.39-60 Svabite Ca5(AsO4)3F P 6₃/m 6/m

VII/B.39-70 Turneaureite Ca5[(As,P)O4]3Cl P 6₃/m 6/m

VII/B.39-80 Johnbaumite Ca5(AsO4)3(OH) P 6₃/m,P 6₃ Hex

VII/B.39-90 Fermorite (Ca,Sr)5(AsO4,PO4)3(OH) P 6₃/m 6/m

VII/B.39-95 Fluorcaphite! (Ca,Sr,Ce,Na)5(PO4)3F P 6₃ 6

VII/B.39-100 Strontium-apatite (Sr,Ca)5(PO4)3(F,OH) P 6₃/m 6/m

VII/B.39-110 Belovite-(Ce) (Sr,Ce,Na,Ca)5(PO4)3(OH) P 3 3

VII/B.39-115 Belovite-(La)! (Sr,La,Ce,Ca)5(PO4)3(F,OH) P 3 3

VII/B.39-117 Kuannersuite-(Ce)! Ba6Na2REE2(PO4)6FCl P 3 3

VII/B.39-120 Alforsite Ba5(PO4)3Cl P 6₃/m 6/m

VII/B.39-130 Morelandite (Ba,Ca,Pb)5(AsO4,PO4)3Cl P 6₃/m,P 6₃ Hex

VII/B.39-140 Hedyphane Ca2Pb3(AsO4)3Cl P 6₃/m 6/m

VII/B.39-150 Pyromorphite Pb5(PO4)3Cl P 6₃/m 6/m

VII/B.39-160 Mimetite Pb5(AsO4)3Cl P 6₃/m 6/m

VII/B.39-165 Clinomimetite Pb5(AsO4)3Cl P 2₁/b 2/m

VII/B.39-170 Vanadinite Pb5(VO4)3Cl P 6₃/m 6/m

Other Belovite-(Ce) Information

References:

NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.81,p1285,1996) OPTIC PROP.(Am.Min.,Vol.81,p1285,1996)

See Also:

Links to other databases for Belovite-(Ce) :
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

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Belovite-(Ce)

(Sr,Ce,Na,Ca)5(PO4)3(OH)
Dana No: 41.8.1.6 Strunz No: VII/B.39-110
Locality:

Notes: