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Brugnatellite Mineral Data

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General Brugnatellite Information

Help on Chemical  Formula: Chemical Formula: Mg6Fe+++(CO3)(OH)13•4(H2O)
Help on Composition: Composition: Molecular Weight = 554.84 gm
   Magnesium  26.28 %  Mg   43.58 % MgO
   Iron       10.07 %  Fe   14.39 % Fe2O3
   Hydrogen    3.81 %  H    34.09 % H2O
   Carbon      2.16 %  C     7.93 % CO2
   Oxygen     57.67 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg6Fe3+(CO3)(OH)13•4(H2O)
Help on Environment: Environment: In serpentinites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1909
Help on Locality: Locality: Asbestos mine at Torre Santa Maria, Val Malenco. Lombardy, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Luigi Brugnatelli (1859-1928), mineralogist, University of Pavia, Italy.
Help on Name Pronunciation: Name Pronunciation: Brugnatellite + Pronunciation Say BRUGNATELLITE
 

Brugnatellite Image

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  Brugnatellite

Comments: Botryoidal brugnatellite.
Location: Monte Ramazzo, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Brugnatellite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.9197
Help on Cell Dimensions: Cell Dimensions: a = 5.48, c = 16, Z = 1; V = 416.11 Den(Calc)= 2.21
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.93(1), 3.96(0.9), 2(0.7),
 

Physical Properties of Brugnatellite

Help on Cleavage: Cleavage: {0001} Perfect
Help on Color: Color: Brown white, Brownish pink, Yellow brown, Pink.
Help on Density: Density: 2.14
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Massive - Lamellar - Distinctly foliated fine-grained forms.
Help on Habit: Habit: Micaceous - Platy texture with "flexible" plates.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Brugnatellite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.075 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.104 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2376,KPDmeas= 0.2453,KC= 0.2652
Ncalc = 1.57 - 1.59
Help on Optical Data: Optical Data: Uniaxial (-), e=1.51, w=1.54, bire=0.0300.
 

Calculated Properties of Brugnatellite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.20 gm/cc
note: Specific Gravity of Brugnatellite =2.14 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEBrugnatellite = 3.57 barns/electron
U=PEBrugnatellite x rElectron Density= 7.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Brugnatellite is Not Radioactive
 

Brugnatellite Classification

Help on  Dana Class: Dana Class: 16b.07.05.01 (16b)Carbonates - Hydroxyl or Halogen
  (16b.07)Dana Type
  (16b.07.05)Dana Group
 
16b.07.05.01 Brugnatellite Mg6Fe(CO3)(OH)13•4(H2O) P 63/mmc 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 05.DA.45 05 - CARBONATES (NITRATES)
  05.D - Carbonates with Additional Anions, with H2O
  05.DA -With medium-sized cations
 
05.DA.45 Brugnatellite Mg6Fe(CO3)(OH)13•4(H2O) P 63/mmc 6/m 2/m 2/m
 
05.DA.45 Barbertonite Mg6Cr2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 
05.DA.45 Chlormagaluminite (Mg,Fe)4Al2(OH)12(Cl2,CO3)•2(H2O) P 6/mcm, P 6cm, P 6c2 Hex
 
05.DA.45 Zaccagnaite! Zn4Al2(OH)12(CO3)•3(H2O) P 63/mmc 6/m 2/m 2/m
 
05.DA.45 Manasseite Mg6Al2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 
05.DA.45 Sjogrenite Mg6Fe2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 

Other Brugnatellite Information

Help on References: References: NAME( Ford32) PHYS. PROP.(Dana8) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Brugnatellite :
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 Brugnatellite Specimen Label here :

Brugnatellite

Mg6Fe+++(CO3)(OH)13•4(H2O)
Dana No: 16b.07.05.01 Strunz No: 05.DA.45
Locality:

 

Notes:

 

 
   
 


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