Clinophosinaite Mineral Data

General Clinophosinaite Information

Chemical Formula:

Na3CaPSiO7

Composition:

Molecular Weight = 288.86 gm

Sodium 23.88 % Na 32.18 % Na₂O

Strontium 3.03 % Sr 3.59 % SrO

Calcium 13.87 % Ca 19.41 % CaO

Silicon 9.72 % Si 20.80 % SiO₂

Phosphorus 10.72 % P 24.57 % P₂O₅

Oxygen 38.77 % O

______ ______

100.00 % 100.55 % = TOTAL OXIDE

Empirical Formula:

Na₃CaSr_0.1PSiO₇

Environment:

Alteration product of eudialyte in alkalic pegmatites in a differentiated alkalic massif.

IMA Status:

Approved IMA 1981 ( Dana # Added)

Locality:

In Russia, on Mts. Yukspor and Koashva, Khibiny massif, Kola Peninsula. Link to MinDat.org Location Data.

Name Origin:

Named for the crystalline system and the relationship with the phosinaite.

Synonym:

ICSD 200927

PDF 35-485

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Clinophosinaite Crystallography

Axial Ratios:

a:b:c =0.5985:1:1.206

Cell Dimensions:

a = 7.303, b = 12.201, c = 14.715, Z = 8; beta = 91.933° V = 1,310.42 Den(Calc)= 2.93

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/c

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

By Intensity(I/I_o): 2.724(1), 2.639(0.57), 2.031(0.5),2.55(0.5), 1.823(0.47), 1.838(0.35), 3.97(0.12),

Crystal Structure:

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Krutik V M , Pushcharovsky D Y , Khomyakov A P , Pobedimskaya E A , Belov N V , Soviet Physics Crystallography , 25 (1980) p.138-142, Anion radical of mixed type (four [S4O12] rings and P orthotetrahedra), in the structure of monoclinic fosinaite, Locality: Khibiny pegmatites, Kola Peninsula, Russia

Physical Properties of Clinophosinaite

Cleavage:

None

Color:

Light violet.

Density:

2.85 - 2.88, Average = 2.86

Diaphaneity:

Semitransparent

Fracture:

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

Hardness:

4 - Fluorite

Luster:

Vitreous (Glassy)

Optical Properties of Clinophosinaite

Gladstone-Dale:

CI meas= -0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.019 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1917,KPDmeas= 0.196,KC= 0.1953
Ncalc = 1.56 - 1.57

Optical Data:

Biaxial (+), a=1.557, b=1.561, g=1.567, bire=0.0100, 2V(Calc)=80, 2V(Meas)=80.

Calculated Properties of Clinophosinaite

Electron Density:

Bulk Density (Electron Density)=2.81 gm/cc
note: Specific Gravity of Clinophosinaite =2.87 gm/cc.

Fermion Index:

Fermion Index = 0.0070371994
Boson Index = 0.9929628006

Photoelectric:

PE_{Clinophosinaite}= 6.25 barns/electron
U=PE_{Clinophosinaite} x rElectron Density= 17.57 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clinophosinaite is Not Radioactive

Clinophosinaite Classification

Dana Class:

60.02.03.01 (60)Cyclosilicate Four-Membered Rings

(60.02)with other anion groups

(60.02.03)Dana Group

60.02.03.01 Clinophosinaite! Na3CaPSiO7 P 2/c 2/m

Strunz Class:

09.CF.15 09 - SILICATES (Germanates)

09.C - Cyclosilicates

09.CF -[Si4O12]8- 4-membered single rings, with insular complex anions

09.CF.15 Clinophosinaite! Na3CaPSiO7 P 2/c 2/m

09.CF.15 Phosinaite-(Ce)! Na13Ca2Ce[Si4O12](PO4)4 P 22121 2 2 2

Other Clinophosinaite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

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

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Print or Cut-and-Paste your Clinophosinaite Specimen Label here :

Clinophosinaite

Na3CaPSiO7
Dana No: 60.02.03.01 Strunz No: 09.CF.15
Locality:

Notes: