Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above
Forms:
( 1 1 0) ( 1 0 0) ( 0 1 1) ( 1 0 2)
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Physical Properties of Wolframite
Cleavage:
{010} Perfect
Color:
Brownish black, Iron black.
Density:
7.1 - 7.5, Average = 7.3
Diaphaneity:
Opaque
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit:
Lamellar - Thin laminae producing a lamellar structure.
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
4.5 - Between Fluorite and Apatite
Luminescence:
Non-fluorescent.
Luster:
Sub Metallic
Streak:
reddish brown
Optical Properties of Wolframite
Optical Data:
NCalc= 2.3 - from Gladstone-Dale relationship (KC = 0.1761) where Ncalc=Dcalc*KC+1 NCalc= 2.29 - from Gladstone-Dale relationship (KC = 0.1761) where Ncalc=Dmeas*KC+1
Calculated Properties of Wolframite
Electron Density:
Bulk Density (Electron Density)=6.42 gm/cc note: Specific Gravity of Wolframite =7.40 gm/cc.
Fermion Index:
Fermion Index = 0.08 Boson Index = 0.92
Photoelectric:
PEWolframite = 759.93 barns/electron U=PEWolframite x rElectron Density=4,877.22 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Wolframite is Not Radioactive
Wolframite Classification
Dana Class:
48.01.01.00(48)Anhydrous Molybdates and Tungstates
Chemical Formula: 
