Gagarinite-(Y) Mineral Data (original) (raw)

General Gagarinite-(Y) Information

Help on Chemical Formula: Chemical Formula:

NaCaY(F,Cl)6

Help on Composition: Composition:

Molecular Weight = 290.65 gm

Sodium 7.91 % Na 10.66 % Na2O

Calcium 13.79 % Ca 19.29 % CaO

Yttrium 30.59 % Y 38.85 % Y2O3

Chlorine 18.30 % Cl 18.30 % Cl

- % Cl -4.13 % -O=Cl2

Fluorine 29.41 % F 29.41 % F

- % F -12.39 % -O=F2

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

NaCaYF4.5Cl1.5

Help on Environment: Environment:

Found in alkaline rocks.

Help on IMA Status: IMA Status:

Approved IMA 1961

Help on Locality: Locality:

Kazakhstan Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named after Yuri Alekseevich Gagarin (1934-1968), the first cosmonaut and the first person to travel in space.

Help on Name Pronunciation: Name Pronunciation:

Gagarinite-(Y) + Pronunciation Say GAGARINITE-(Y)

Help on Synonym: Synonym:

ICSD 39845

Nakalifite

PDF 15-69

Gagarinite-(Y) Image

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Gagarinite-(Y) Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:0.58931

Help on Cell Dimensions: Cell Dimensions:

a = 5.99, c = 3.53, Z = 1; V = 109.69 Den(Calc)= 4.40

Help on Crystal System: Crystal System:

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

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 1.72(1), 2.09(0.9), 2.92(0.5),3(0.5), 1.13(0.3), 5.24(0.3), 1.96(0.2), 2.28(0.2),

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| | Hughes J M , Drexler J W , The Canadian Mineralogist , 32 (1994) p.563-565, Refinement of the structure of gagarinite-(Y), Nax(CaxREE2-x)F6 | | ---------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Gagarinite-(Y)

Help on Cleavage: Cleavage:

{0001} Fair

Help on Color: Color:

Yellow, Cream white, Light brown, Pink.

Help on Density: Density:

4.21

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Fracture: Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Help on Habit: Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Help on Hardness: Hardness:

4.5 - Between Fluorite and Apatite

Help on Luster: Luster:

Vitreous - Dull

Help on Magnetism: Magnetism:

Slightly magnetic

Help on Streak: Streak:

white

Optical Properties of Gagarinite-(Y)

Help on Optical Data: Optical Data:

Uniaxial (+), w=1.472, e=1.492, bire=0.0200.

Calculated Properties of Gagarinite-(Y)

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.12 gm/cc
note: Specific Gravity of Gagarinite-(Y) =4.40 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0001861557
Boson Index = 0.9998138443

Help on Photoelectric: Photoelectric:

PEGagarinite-(Y) = 41.66 barns/electron
U=PEGagarinite-(Y) x rElectron Density= 171.55 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Gagarinite-(Y) is Not Radioactive

Gagarinite-(Y) Classification

Help on Dana Class: Dana Class:

11.05.06.01 (11)Halide Complexes; Alumino-fluorides

(11.05)where (A)m B (X)6

(11.05.06)Dana Group

11.05.06.01 Gagarinite-(Y) NaCaY(F,Cl)6 P 3 3

11.05.06.02 IMA2009-015 NaSrCeF6 P 63/m 6/m

Help on Strunz Class: Strunz Class:

03.AB.35 03 - HALIDES

03.A - Simple Halides, Without H2O

03.AB -M:X = 1:2

03.AB.35 Gagarinite-(Y) NaCaY(F,Cl)6 P 3 3

03.AB.35 Zajacite-(Ce) Na(REExCa1-x)(REEyCa1-y)F6where(xney) P 3 3

Other Gagarinite-(Y) Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

Help on See Also: See Also:

Links to other databases for Gagarinite-(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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Ask about Gagarinite-(Y) here :
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Print or Cut-and-Paste your Gagarinite-(Y) Specimen Label here :

Gagarinite-(Y)

NaCaY(F,Cl)6
Dana No: 11.05.06.01 Strunz No: 03.AB.35
Locality:

Notes: