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:
( 0 1 0) ( 3 1 0) ( 0 0 1)
Warning: this java applet does not work in some browsers because of security restrictions.
Physical Properties of Pinakiolite
Cleavage:
{010} Good
Color:
Black.
Density:
3.88
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit:
Tabular - Form dimensions are thin in one direction.
Hardness:
6 - Orthoclase
Luster:
Adamantine - Metallic
Streak:
brown gray
Optical Properties of Pinakiolite
Gladstone-Dale:
CI meas= -0.272 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.323 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3224,KPDmeas= 0.31,KC= 0.2437 Ncalc = 1.91 - 1.95
Optical Data:
Biaxial (-), a=1.908, b=2.05, g=2.65, bire=0.7420, 2V(Calc)=64, 2V(Meas)=32. Dispersion r < v.
Pleochroism (x):
reddish brown.
Pleochroism (y):
nearly opaque black.
Pleochroism (z):
yellowish red.
Calculated Properties of Pinakiolite
Electron Density:
Bulk Density (Electron Density)=3.75 gm/cc note: Specific Gravity of Pinakiolite =3.88 gm/cc.
Fermion Index:
Fermion Index = 0.03 Boson Index = 0.97
Photoelectric:
PEPinakiolite = 7.85 barns/electron U=PEPinakiolite x rElectron Density= 29.47 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Pinakiolite is Not Radioactive
Chemical Formula: 
