Brugnatellite Mineral Data + Say BRUGNATELLITE


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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.
 

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 DipyramidalH-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 Diaphaniety: Diaphaniety: 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
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:

relectron=2.20 gm/cc
note: rBrugnatellite =2.14 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.02893
Boson Index = 0.97107
Help on Photoelectric: Photoelectric:

PEBrugnatellite = 3.57 barns/electron
U=PEBrugnatellite x relectron= 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.7.5.1 (16b)Carbonates - Hydroxyl or Halogen
  (16b.7)Dana Type
  (16b.7.5)Dana Group
 
16b.7.5.1 Brugnatellite Mg6Fe(CO3)(OH)13·4(H2O) P 63/mmc 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: V/E.01-70 V - Nitrates, Carbonates and Borates
  V/E - Water-bearing carbonates with unfamiliar anions
  V/E.01 - Hydromagnesite - Brugnatellite series
 
V/E.01-10 Hydromagnesite Mg5(CO3)4(OH)2·4(H2O) P 21/c 2/m
 
V/E.01-15 Widgiemoolthalite (Ni,Mg)5(CO3)4(OH)2·4-5(H2O) P 21/c 2/m
 
V/E.01-20 Dypingite Mg5(CO3)4(OH)2·5(H2O) Unk. Mono
 
V/E.01-30 Giorgiosite Mg5(CO3)4(OH)2·5(H2O) ? Mono
 
V/E.01-40 Artinite Mg2(CO3)(OH)2·3(H2O) C 2 or C 2/m Mono
 
V/E.01-50 Indigirite Mg2Al2(CO3)4(OH)2·15(H2O) Unk. Mono
 
V/E.01-60 Coalingite Mg10Fe2(CO3)(OH)24·2(H2O) R 3c 3 2/m
 
V/E.01-70 Brugnatellite Mg6Fe(CO3)(OH)13·4(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 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Brugnatellite

Mg6Fe+++(CO3)(OH)13·4(H2O)
Dana No: 16b.7.5.1 Strunz No: V/E.01-70
Locality:

 

Notes:

 

 
   
 
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