Viseite Mineral Data

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General Viseite Information

Chemical Formula:

Ca10Al24(SiO4)6(PO4)7O22F3•72(H2O) (?)

Composition:

Molecular Weight = 3,944.74 gm

Calcium 10.16 % Ca 14.22 % CaO

Aluminum 15.73 % Al 29.72 % Al₂O₃

Silicon 4.27 % Si 9.14 % SiO₂

Phosphorus 5.50 % P 12.59 % P₂O₅

Hydrogen 3.68 % H 32.88 % H₂O

Oxygen 59.22 % O

Fluorine 1.44 % F 1.44 % F

- % F -0.61 % -O=F₂

______ ______

100.00 % 99.39 % = TOTAL OXIDE

Empirical Formula:

Ca₁₀Al₂₃(SiO₄)₆(PO₄)₇O₂₂F₃•72(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1942

Locality:

Vise, Belgium. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Viseite Image

Images:

Viseite Trolleite

Comments: Chalky white massive viseite with bluish trolleite.
Location: Champion Sillimanite Mine, near Laws, Mono County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Viseite Crystallography

Cell Dimensions:

a = 13.65, Z = 1; V = 2,543.30 Den(Calc)= 2.58

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: I a3d

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

By Intensity(I/I_o): 2.92(1), 1.74(0.6), 3.46(0.5),

Physical Properties of Viseite

Cleavage:

None

Color:

Bluish white, Yellowish white, Lemon white.

Density:

2.2

Diaphaneity:

Transparent to Translucent

Fracture:

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

Hardness:

3-4 - Calcite-Fluorite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Viseite

Gladstone-Dale:

CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.165 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2054,KPDmeas= 0.2409,KC= 0.2459
Ncalc = 1.54 - 1.63

Optical Data:

Isotropic, n=1.53.

Calculated Properties of Viseite

Electron Density:

Bulk Density (Electron Density)=2.26 gm/cc
note: Specific Gravity of Viseite =2.20 gm/cc.

Fermion Index:

Fermion Index = 0.0024218656
Boson Index = 0.9975781344

Photoelectric:

PE_Viseite= 2.19 barns/electron
U=PE_Viseite x rElectron Density= 4.96 barns/cc.

Radioactivity:

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

Viseite Classification

Dana Class:

43.05.09.01 (43)Compound Phosphates, etc.

(43.05)(Hydrated Compound Anions With Hydroxyl or Halogen)

(43.05.09)Dana Group

43.05.09.01 Viseite Ca10Al24(SiO4)6(PO4)7O22F3•72(H2O)(?) I a3d 4/m 3 2/m

Strunz Class:

08.XX.00 08 - PHOSPHATES, ARSENATES, VANADATES

08.X - Unclassified Strunz PHOSPHATES, ARSENATES, VANADATES

08.XX -Zeolite

08.XX.00 Arsenobismite? Bi2(AsO4)(OH)3 Unk Ortho

08.XX.00 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O) P1 1

08.XX.00 Cheralite-(Ce)? (Ce,Ca,Th)(P,Si)O4 P 2₁/n 2/m

08.XX.00 Chernovite-(Ce)* (Ce,Y)(AsO4) I 4₁/amd 4/m 2/m 2/m

08.XX.00 Kerstenite? PbSeO4(?) P nma 2/m 2/m 2/m

08.XX.00 Laubmannite? Fe3Fe6(PO4)4(OH)12 Unk Ortho

08.XX.00 Spodiosite? Ca2(PO4)F Pbcm 2/m 2/m 2/m

08.XX.00 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4•5(H2O)(?) Unk Ortho

08.XX.00 Viseite Ca10Al24(SiO4)6(PO4)7O22F3•72(H2O)(?) I a3d 4/m 3 2/m

08.XX.00 Vanuranylite? (H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O)(?) C 2/c ? 2/m

08.XX.00 Sodium-autunite Na2(UO2)2(PO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m

08.XX.00 Sodium meta-autunite! Na2(UO2)2(PO4)2•6-8(H2O) P 4/nmm 4/m 2/m 2/m

08.XX.00 Slavkovite! Cu13(AsO4)6(AsO3OH)4•23(H2O) P1 1

08.XX.00 IMA2000-020! Fe4[AsO3OH]5[AsO2(OH)2]2•20(H2O) Ortho Ortho

08.XX.00 Lewisite! (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m

08.XX.00 Kamarizaite! Fe3(AsO4)2(OH)3•3H2O Pccm, Pcc2, Pcmm, Pcm21 Ortho

08.XX.00 Lapeyreite! Cu3O[AsO3(OH)]2•H2O C 2/m 2/m

08.XX.00 IMA2008-063 Pb[Zn0.25,[]0.75]Fe3H(AsO4)2(OH)6 C 2/c 2/m

08.XX.00 IMA2009-002! Cu3(AsO4)2 P 2₁/c 2/m

08.XX.00 IMA2009-005 (Y,Ca,REE)5[(Si,P)O4]3F P 6₃/m 6/m 2/m 2/m

08.XX.00 IMA2009-016 Cu4H(AsO4)2(OH)3•H2O P1 1

Other Viseite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

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

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Viseite

Ca10Al24(SiO4)6(PO4)7O22F3•72(H2O) (?)
Dana No: 43.05.09.01 Strunz No: 08.XX.00
Locality:

Notes: