Belovite-(La) Mineral Data

Belovite-(La) Mineral Data +

General Belovite-(La) Information

Chemical Formula:

(Sr,La,Ce,Ca)5(PO4)3(F,OH)

Composition:

Molecular Weight = 867.06 gm

Strontium 22.74 % Sr 26.89 % SrO

Calcium 1.16 % Ca 1.62 % CaO

Lanthanum 24.03 % La 28.18 % La₂O₃

Cerium 16.16 % Ce 18.93 % Ce₂O₃

Phosphorus 10.72 % P 24.56 % P₂O₅

Hydrogen 0.12 % H 1.04 % H₂O

Oxygen 23.99 % O

Fluorine 1.10 % F 1.10 % F

- % F -0.46 % -O=F₂

______ ______

100.00 % 101.85 % = TOTAL OXIDE

Empirical Formula:

5(Sr_0.45)5(La_0.3)5(Ce_0.2)5(Ca_0.05)(PO₄)₃F_0.5(OH)

Environment:

Alkalic igneous rocks.

IMA Status:

Approved IMA 1998 (Dana # Added)

Locality:

Link to MinDat.org Location Data.

Name Origin:

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

Synonym:

Belovite

ICSD 86853

IMA1995-023

Belovite-(La) Image

Images:

Belovite-(La)

Comments: Yellow, pseudo-hexagonal crystal of belovite-(La) in calcite.
Location: Khibina massif, Kola Peninsula, Russia. Scale: Crystal size 1.5 mm.
© Tom Loomis / Dakota Matrix

Belovite-(La) Crystallography

Axial Ratios:

a:c = 1:0.74323

Cell Dimensions:

a = 9.647, c = 7.17, Z = 2; V = 577.88 Den(Calc)= 4.98

Crystal System:

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

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

By Intensity(I/I_o): 2.884(1), 2.897(1), 3.59(0.87),3.3(0.65),

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Physical Properties of Belovite-(La)

Cleavage:

None

Color:

Yellow, Greenish yellow.

Density:

4.19

Diaphaniety:

Transparent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Hardness:

5 - Apatite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Belovite-(La)

Gladstone-Dale:

CI meas= 0.041 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.193 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1293,KPDmeas= 0.1537,KC= 0.1603

Optical Data:

Uniaxial (-), e=1.635, w=1.653, bire=0.0180.

Calculated Properties of Belovite-(La)

Electron Density:

r_electron=3.75 gm/cc
note: r_{Belovite-(La)}=4.19 gm/cc.

Fermion Index

Fermion Index = 0.01626
Boson Index = 0.98374

Photoelectric:

PE_{Belovite-(La)}= 226.05 barns/electron
U=PE_{Belovite-(La)} x r_electron= 848.76 barns/cc.

Radioactivity:

GRapi = 38,416.88 (Gamma Ray American Petroleum Institute Units)

Belovite-(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) 791.75 ±197.94 grams of pure Belovite-(La) .

**Estimated Radioactivity from Belovite-(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 / 7.70 cm	900,262	2.43E-05	38,416.88	12.63
100 gm / 3.57 cm	90,026	2.43E-06	3,841.69	1.26
10 gm / 1.66 cm	9,003	2.43E-07	384.17	0.13
1 gm / 7.70 mm	900	2.43E-08	38.42	0.01
0.1 gm / 3.57 mm	90	2.43E-09	3.84	0.00
0.01 gm / 1.66 mm	9	2.43E-10	0.38	0.00
0.001 gm / 0.77 mm	1	2.43E-11	0.04	0.00

Weight of pure Belovite-(La) 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 ( 2.01 % Th) From Sum REE Elements (40.19 % REE)

Belovite-(La) Classification

Dana Class:

41.8.1.6a (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.39-115 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-(La) Information

References:

NAME( Dana8) PHYS. PROP.(Eur. J. Min.,Vol.8,1996) OPTIC PROP.(Eur. J. Min.,Vol.8,1996)

See Also:

Links to other databases for Belovite-(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

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Belovite-(La)

(Sr,La,Ce,Ca)5(PO4)3(F,OH)
Dana No: 41.8.1.6a Strunz No: VII/B.39-115
Locality:

Notes: