Bruggenite Mineral Data

Bruggenite Mineral Data +

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General Bruggenite Information

Chemical Formula:

Ca(IO3)2·(H2O)

Composition:

Molecular Weight = 407.90 gm

Calcium 9.83 % Ca 13.75 % CaO

Hydrogen 0.49 % H 4.42 % H₂O

Iodine 62.22 % I 81.84 % I₂O₅

Oxygen 27.46 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca(IO₃)₂·(H₂O)

IMA Status:

Approved IMA 1971

Locality:

Link to MinDat.org Location Data.

Synonym:

Brueggenite

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Bruggenite Crystallography

Axial Ratios:

a:b:c =0.8486:1:0.7491

Cell Dimensions:

a = 8.509, b = 10.027, c = 7.512, Z = 4; beta = 95.27° V = 638.21 Den(Calc)= 4.24

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/c

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

By Intensity(I/I_o): 3.05(1), 3.24(0.9), 4.24(0.8),

Crystal Structure:

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Alici E , Schmidt T , Lutz H D , Zeitschrift fur Anorganische und Allgemeine Chemie , 608 (1992) p.135-144, Zur kenntnis des calciumbromats und -iodats, kristallstruktur, rontgenographische,, IR- und Raman-spektroskopische und thermo-analytische untersuchungen

Physical Properties of Bruggenite

Color:

Colorless, Bright yellow.

Density:

4.24

Diaphaniety:

Transparent to Translucent

Hardness:

3.5 - Copper Penny

Luster:

Vitreous (Glassy)

Optical Properties of Bruggenite

Gladstone-Dale:

CI meas= 0.075 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.075 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1882,KPDmeas= 0.1882,KC= 0.2035

Optical Data:

Biaxial (-), a=1.7755, b=1.7985, g=1.8205, bire=0.0450, 2V(Calc)=86, 2V(Meas)=86-96.

Calculated Properties of Bruggenite

Electron Density:

r_electron=3.83 gm/cc
note: r_Bruggenite=4.24 gm/cc.

Fermion Index

Fermion Index = 0.00026
Boson Index = 0.99974

Photoelectric:

PE_Bruggenite= 233.63 barns/electron
U=PE_Bruggenite x r_electron= 893.68 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bruggenite is Not Radioactive

Bruggenite Classification

Dana Class:

21.1.2.1 (21)Iodates - Anhydrous and Hydrated

(21.1)with miscellaneous formulae

(21.1.2)Dana Group

21.1.2.1 Bruggenite Ca(IO3)2·(H2O) P 2₁/c 2/m

Strunz Class:

IV/L.01-20 IV - Oxides

IV/L - Iodates with [IO3]1- groups

IV/L.01 - Lautarite - Dietzeite series

IV/L.01-10 Lautarite Ca(IO3)2 P 2₁/n 2/m

IV/L.01-20 Bruggenite Ca(IO3)2·(H2O) P 2₁/c 2/m

IV/L.01-30 Dietzeite Ca2(IO3)2(CrO4) P 2₁/c 2/m

Other Bruggenite Information

References:

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

See Also:

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

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Bruggenite

Ca(IO3)2·(H2O)
Dana No: 21.1.2.1 Strunz No: IV/L.01-20
Locality:

Notes: