Bruggenite Mineral Data

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)

Environment:

Veins with nitratine and impregnating the enclosing decomposing rhyolite tuff in a small basin filled with nitrate caliche.

IMA Status:

Approved IMA 1971

Locality:

Pampa Pique III, about one km north of Oficina Lautaro, Taltal district, Antofagasta, Chile. Link to MinDat.org Location Data.

Name Origin:

Named for Juan Bruggen (1887-1953), University of Chile, who wrote the first textbook on the geology of Chile.

Name Pronunciation:

Bruggenite + Pronunciation

Synonym:

Brueggenite

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 - Prismatic H-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),

Physical Properties of Bruggenite

Color:

Colorless, Bright yellow.

Density:

4.24

Diaphaneity:

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
Ncalc = 1.86

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:

Bulk Density (Electron Density)=3.83 gm/cc
note: Specific Gravity of Bruggenite =4.24 gm/cc.

Fermion Index:

Fermion Index = 0.0002651778
Boson Index = 0.9997348222

Photoelectric:

PE_Bruggenite= 233.63 barns/electron
U=PE_Bruggenite x rElectron Density= 893.68 barns/cc.

Radioactivity:

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

Bruggenite Classification

Dana Class:

21.01.02.01 (21)Iodates - Anhydrous and Hydrated

(21.01)with miscellaneous formulae

(21.01.02)Dana Group

21.01.02.01 Bruggenite Ca(IO3)2•(H2O) P 2₁/c 2/m

Strunz Class:

04.KC.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.K - Iodates

04.KC -Iodates without additional anions, with H2O

04.KC.10 Bruggenite Ca(IO3)2•(H2O) P 2₁/c 2/m

Other Bruggenite Information

References:

NAME( AntBidBlaNic3) 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 - 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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Bruggenite

Ca(IO3)2•(H2O)
Dana No: 21.01.02.01 Strunz No: 04.KC.10
Locality:

Notes:

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