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Aluminomagnesiohulsite Mineral Data

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General Aluminomagnesiohulsite Information

Help on Chemical  Formula: Chemical Formula: Mg2(Al,Mg,Mn)(BO3)O2
Help on Composition: Composition: Molecular Weight = 195.24 gm
   Magnesium  21.41 %  Mg   35.51 % MgO
   Titanium    0.49 %  Ti    0.82 % TiO2
   Manganese   0.28 %  Mn    0.36 % MnO
   Aluminum    8.71 %  Al   16.45 % Al2O3
   Iron       12.87 %  Fe   16.56 % FeO
   Tin         9.73 %  Sn   12.35 % SnO2
   Boron       5.54 %  B    17.83 % B2O3
   Oxygen     40.97 %  O
             ______        ______ 
             100.00 %       99.88 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg1.55Fe2+0.45Al0.63Mg0.17Mn2+0.01Ti0.02Sn0.16O2(BO3)
Help on Environment: Environment: Occurs in Paleozoic kotoite marble in the contact zone of a Mesozoic granosyenite massif. Hulsite group; structure determined.
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Near the mouth of Kebirin´┐Żya Creek, a northern tributary of the Dogdo River, some 250 km east of Verkhoyansk, Republic of Sakha-Yakutia, Russia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Al and Mg dominant member of the hulsite group.
Help on Synonym: Synonym: Alumino-magnesiohulsite - Renamed Aluminomagnesiohulsite by Mineralogical Record, v39 (2008), p131

Aluminomagnesiohulsite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7638:1:3.4673
Help on Cell Dimensions: Cell Dimensions: a = 5.3444, b = 3.03, c = 10.506, Z = 2; beta = 94.46° V = 169.61 Den(Calc)= 3.82
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.532(1), 2.001(0.54), 2.618(0.5),5.24(0.49), 4.9(0.32), 2.318(0.3), 10.47(0.29), 1.515(0.28),

Physical Properties of Aluminomagnesiohulsite

Help on Color: Color: Brown.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.
Help on Luster: Luster: Vitreous (Glassy)

Optical Properties of Aluminomagnesiohulsite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.062 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2083,KC= 0.1961
Ncalc = 1.75
Help on Optical Data: Optical Data: Biaxial (+), a=1.78, b=1.802, g=1.805, bire=0.0250

Calculated Properties of Aluminomagnesiohulsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.69 gm/cc
note: Specific Gravity of Aluminomagnesiohulsite =3.82 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEAluminomagnesiohulsite = 32.59 barns/electron
U=PEAluminomagnesiohulsite x rElectron Density= 120.14 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Aluminomagnesiohulsite is Not Radioactive

Aluminomagnesiohulsite Classification

Help on  Dana Class: Dana Class: (24)Borates - Anhydrous
  (24.02)where (A)2 BO2 [XO3]
  (24.02.03)Dana Group Hulsite (Fe,Mg)2(Fe,Sn)O2(BO3) P 2/m 2/m Magnesiohulsite (Mg,Fe)2(Mg,Fe,Sn)O2(BO3) P 2/m 2/m Aluminomagnesiohulsite! Mg2(Al,Mg,Sn)(BO3)O2 P 2/m 2/m
Help on  Strunz Class: Strunz Class: 06.AB.45 06 - BORATES
  06.A - Monoborates
  06.AB -BO3, with additional anions; 1(D) + OH, etc.
06.AB.45 Hulsite (Fe,Mg)2(Fe,Sn)O2(BO3) P 2/m 2/m
06.AB.45 Magnesiohulsite (Mg,Fe)2(Mg,Fe,Sn)O2(BO3) P 2/m 2/m
06.AB.45 Aluminomagnesiohulsite! Mg2(Al,Mg,Sn)(BO3)O2 P 2/m 2/m

Other Aluminomagnesiohulsite Information

Help on References: References: NAME( AmMin 89:1574) PHYS. PROP.(AmMin 89:1574) OPTIC PROP.(AmMin 89:1574)
Help on See Also: See Also: Links to other databases for Aluminomagnesiohulsite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 06.AB.45





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