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Physical Properties of Melanovanadite
Cleavage:
{010} Perfect
Color:
Black.
Density:
2.55
Diaphaneity:
Opaque
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Hardness:
2.5 - Finger Nail
Luster:
Sub Metallic
Streak:
dark red brown
Optical Properties of Melanovanadite
Gladstone-Dale:
CI meas= -0.038 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.067 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3589,KPDmeas= 0.349,KC= 0.3363 Ncalc = 1.83 - 1.86
Optical Data:
Biaxial (-), a=1.73, b=1.96, g=1.98, bire=0.2500
Calculated Properties of Melanovanadite
Electron Density:
Bulk Density (Electron Density)=2.50 gm/cc note: Specific Gravity of Melanovanadite =2.55 gm/cc.
Fermion Index:
Fermion Index = 0.0013772182 Boson Index = 0.9986227818
Photoelectric:
PEMelanovanadite = 8.81 barns/electron U=PEMelanovanadite x rElectron Density= 22.01 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Melanovanadite is Not Radioactive
Chemical Formula: 
