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 0 0) ( 3 1 1) ( 1 1 1) ( 1 1 0)
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Physical Properties of Meionite
Cleavage:
{???} Distinct, {???} Indistinct
Color:
Bluish, Brownish, Colorless, Violet, Greenish.
Density:
2.66 - 2.73, Average = 2.69
Diaphaneity:
Transparent to subtranslucent
Fracture:
Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.
Habit:
Columnar - Forms columns
Habit:
Fibrous - Crystals made up of fibers.
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Hardness:
5-6 - Between Apatite and Orthoclase
Luminescence:
Fluorescent, Short UV=yellow-white, Long UV=red.
Luster:
Vitreous - Resinous
Streak:
colorless
Optical Properties of Meionite
Gladstone-Dale:
CI meas= -0.02 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.014 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2113,KPDmeas= 0.2124,KC= 0.2083 Ncalc = 1.55 - 1.57
Chemical Formula: 
