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:
( 2 1 0) ( 1 0 1)
Warning: this java applet does not work in some browsers because of security restrictions.
Physical Properties of Glaucodot
Cleavage:
{010} Perfect, {101} Distinct
Color:
Grayish tin white, Reddish silver white.
Density:
5.9 - 6.01, Average = 5.95
Diaphaneity:
Opaque
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Massive - Uniformly indistinguishable crystals forming large masses.
Hardness:
5 - Apatite
Luminescence:
Non-fluorescent.
Luster:
Metallic
Streak:
black
Optical Properties of Glaucodot
RL Anisotrophism:
Distinct, less strong than arsenopyrite.
RL Pleochroism:
Less distinct than arsenopyrite.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Glaucodot in Air
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
400 nm
47.90
52.00
420 nm
48.30
51.80
440 nm
48.70
51.60
460 nm
49.10
51.50
480 nm
49.40
51.40
500 nm
49.60
51.30
520 nm
49.90
51.20
540 nm
50.20
51.10
560 nm
50.50
51.10
580 nm
50.60
51.00
600 nm
50.70
50.90
620 nm
51.00
50.70
640 nm
51.10
50.60
660 nm
51.10
50.50
680 nm
51.10
50.50
700 nm
51.60
50.50
Calculated Relative Intensity Colors of Glaucodot in Air
Relative Intensity
0%
20%
40%
60%
80%
100%
120%
140%
160%
180%
R1
R2
Calculated Properties of Glaucodot
Electron Density:
Bulk Density (Electron Density)=5.71 gm/cc note: Specific Gravity of Glaucodot =6.22 gm/cc.
Fermion Index:
Fermion Index = 0.0032484804 Boson Index = 0.9967515196
Photoelectric:
PEGlaucodot = 45.20 barns/electron U=PEGlaucodot x rElectron Density= 257.93 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Glaucodot is Not Radioactive
Glaucodot Classification
Dana Class:
02.12.06.01(02)Sulfides - Including Selenides and Tellurides
Chemical Formula: 
