Kuliokite-(Y) Mineral Data

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General Kuliokite-(Y) Information

Chemical Formula:

(Y,REE)4Al(SiO4)2(OH)2F5

Composition:

Molecular Weight = 706.82 gm

La,Ce,Pr,Nd,Sm, 6.11 % RE 7.13 % REE₂O₃

Yttrium 45.28 % Y 57.51 % Y₂O₃

Aluminum 3.82 % Al 7.21 % Al₂O₃

Silicon 7.95 % Si 17.00 % SiO₂

Hydrogen 0.31 % H 2.80 % H₂O

Oxygen 23.09 % O

Fluorine 13.44 % F 13.44 % F

- % F -5.66 % -O=F₂

______ ______

100.00 % 99.43 % = TOTAL OXIDE

Empirical Formula:

Y_3.6REE_0.3Al(SiO₄)₂(OH)_2.2F₅

Environment:

As inclusions in fluorite or on fissures in microcline pegmatites.

IMA Status:

Approved IMA 1984

Locality:

From the [Keivy massif,] Kola Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for Kuliok River, Kola Peninsula, Russia.

Name Pronunciation:

Kuliokite-(Y) + Pronunciation

Synonym:

ICSD 62355

PDF 40-467

Kuliokite-(Y) Image

Images:

Kuliokite-(Y)

Comments: White encrustations of kuliokite-(Y) grains on pegmatite.
Location: Ploskaya Mt., Western Keivy, Kola Peninsula, Russia. Scale: Specimen Size 14x10x8 mm.
© Sergey Vasiliev / Systematic Mineralogy

Kuliokite-(Y) Crystallography

Axial Ratios:

a:b:c =0.9923:1:0.4978

Cell Dimensions:

a = 8.606, b = 8.672, c = 4.317, Z = 1; alpha = 102.79°, beta = 97.94°, gamma = 116.66° V = 278.09 Den(Calc)= 4.22

Crystal System:

Triclinic - PedialH-M Symbol (1) Space Group: P1

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

By Intensity(I/I_o): 2.793(1), 3.49(0.9), 3.71(0.9),

Crystal Structure:

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Sokolova E V , Egorov-Tismenko Y K , Voloshin A V , Pakhomovsky Y A , Soviet Physics Doklady , 31 (1986) p.601-603, Crystal structure of the new Y-Al silicate kuliokite-(Y), Y4Al[SiO4]2(OH)2F5, Locality: Kola Peninsula, Russia

Physical Properties of Kuliokite-(Y)

Cleavage:

{010} Poor

Color:

Colorless, White, Light pink.

Density:

4.3

Diaphaneity:

Transparent

Habit:

Platy - Sheet forms (e.g. micas).

Hardness:

4-5 - Fluorite-Apatite

Luminescence:

Cathodolumiescence.

Luster:

Adamantine

Streak:

white

Optical Properties of Kuliokite-(Y)

Gladstone-Dale:

CI meas= 0.078 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.087 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1581,KPDmeas= 0.1596,KC= 0.1732
Ncalc = 1.74 - 1.75

Optical Data:

Biaxial (-), a=1.656, b=1.7, g=1.703, bire=0.0470, 2V(Calc)=28, 2V(Meas)=19-29. Dispersion r > v.

Calculated Properties of Kuliokite-(Y)

Electron Density:

Bulk Density (Electron Density)=4.00 gm/cc
note: Specific Gravity of Kuliokite-(Y) =4.30 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Kuliokite-(Y)}= 94.93 barns/electron
U=PE_{Kuliokite-(Y)} x r_electron= 379.42 barns/cc.

Radioactivity:

GRapi = 6,081.62 (Gamma Ray American Petroleum Institute Units)
Concentration of Kuliokite-(Y) per GRapi unit = 164.43 (PPM)

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

**Estimated Radioactivity from Kuliokite-(Y)** - mild
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 / 7.63 cm	137,398	3.71E-06	6,081.62	2.00
100 gm / 3.54 cm	13,740	3.71E-07	608.16	0.20
10 gm / 1.64 cm	1,374	3.71E-08	60.82	0.02
1 gm / 7.63 mm	137	3.71E-09	6.08	0.00
0.1 gm / 3.54 mm	14	3.71E-10	0.61	0.00
0.01 gm / 1.64 mm	1	3.71E-11	0.06	0.00
0.001 gm / 0.76 mm	0	3.71E-12	0.01	0.00

Weight of pure Kuliokite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.30 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 ( 0.31 % Th) From Sum REE Elements ( 6.11 % REE)

Kuliokite-(Y) Classification

Dana Class:

78.07.08.01 (78)Unclassified silicates

(78.07)wholly unclassified silicates

(78.07.08)Dana Group

78.07.08.01 Kuliokite-(Y) (Y,REE)4Al(SiO4)2(OH)2F5 P1 1

Strunz Class:

09.AG.50 09 - SILICATES (Germanates)

09.A - Nesosilicates

09.AG -Nesosilicates with additional anions; cations in > [6] ± [6] coordination

09.AG.50 Kuliokite-(Y) (Y,REE)4Al(SiO4)2(OH)2F5 P1 1

Other Kuliokite-(Y) Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(Am.Min.,Vol.73,p192,1988)

See Also:

Links to other databases for Kuliokite-(Y) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - WWW-MINCRYST

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Print or Cut-and-Paste your Kuliokite-(Y) Specimen Label here :

Kuliokite-(Y)

(Y,REE)4Al(SiO4)2(OH)2F5
Dana No: 78.07.08.01 Strunz No: 09.AG.50
Locality:

Notes: