Mineralogy Database

Ganomalite Mineral Data

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General Ganomalite Information

Help on Chemical  Formula: Chemical Formula: Pb9Ca5Mn++Si9O33
Help on Composition: Composition: Molecular Weight = 2,900.88 gm
   Calcium     6.91 %  Ca    9.67 % CaO
   Manganese   1.89 %  Mn    2.45 % MnO
   Silicon     8.71 %  Si   18.64 % SiO2
   Lead       64.28 %  Pb   69.25 % PbO
   Oxygen     18.20 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb9Ca5Mn2+Si9O33
Help on Environment: Environment: In skarn assemblages (Jakobsberg, Sweden); in manganese ores in a metamorphosed stratiform zinc orebody (Franklin, New Jersey, USA).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1876
Help on Locality: Locality: Jakobsberg, Vermland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for luster, in allusion to its appearance.
Help on Name Pronunciation: Name Pronunciation: Ganomalite + Pronunciation Say GANOMALITE
Help on Synonym: Synonym: ICSD 50268
  PDF 25-150

Ganomalite Image

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  Ganomalite   Jacobsite

Comments: White crystalline ganomalite with dark granular jacobsite.
Location: Jacobsberg, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ganomalite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.03156
Help on Cell Dimensions: Cell Dimensions: a = 9.82, c = 10.13, Z = 1; V = 845.99 Den(Calc)= 5.69
Help on Crystal System: Crystal System: Trigonal - Pyramidal H-M Symbol (3) Space Group: P 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.06(1), 3.53(0.9), 3.38(0.8),

Physical Properties of Ganomalite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Colorless, Gray, White.
Help on Density: Density: 5.74
Help on Diaphaneity: Diaphaneity: Translucent to transparent
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: white

Optical Properties of Ganomalite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.036 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.045 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.163,KPDmeas= 0.1616,KC= 0.156
Ncalc = 1.89 - 1.9
Help on Optical Data: Optical Data: Uniaxial (+), w=1.91, e=1.945, bire=0.0350.

Calculated Properties of Ganomalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.96 gm/cc
note: Specific Gravity of Ganomalite =5.74 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.14
Boson Index = 0.86
Help on Photoelectric: Photoelectric: PEGanomalite =1,144.22 barns/electron
U=PEGanomalite x rElectron Density=5,673.78 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ganomalite is Not Radioactive

Ganomalite Classification

Help on  Dana Class: Dana Class: (78)Unclassified silicates
  (78.02)possible sorosilicates
  (78.02.01)Dana Group Ganomalite Pb9Ca5MnSi9O33 P 3 3
Help on  Strunz Class: Strunz Class: 09.BG.25 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BG -Sorosilicates with mixed SiO4 and Si2O7 groups;
09.BG.25 Ganomalite Pb9Ca5MnSi9O33 P 3 3

Other Ganomalite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Ganomalite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 09.BG.25





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