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Physical Properties of Hetaerolite
Cleavage:
{001} Indistinct, {112} Poor, {011} Poor
Color:
Black.
Density:
4.85 - 5.18, Average = 5.01
Diaphaneity:
Subtranslucent to opaque
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Botryoidal - "Grape-like" rounded forms (e.g.. malachite).
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Habit:
Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).
Hardness:
6 - Orthoclase
Luminescence:
Non-fluorescent.
Luster:
Sub Metallic
Magnetism:
Nonmagnetic
Streak:
brownish black
Optical Properties of Hetaerolite
Gladstone-Dale:
CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.068 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2353,KPDmeas= 0.2473,KC= 0.2524 Ncalc = 2.22 - 2.33
Optical Data:
Uniaxial (-), e=2.14, w=2.34, bire=0.2000.
RL Anisotrophism:
Strong.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Hetaerolite in Air
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
400 nm
19.30
25.80
420 nm
18.30
24.00
440 nm
17.30
22.20
460 nm
16.50
21.00
480 nm
15.80
20.10
500 nm
15.40
19.40
520 nm
15.00
18.90
540 nm
14.70
18.40
560 nm
14.50
18.10
580 nm
14.20
17.80
600 nm
14.00
17.60
620 nm
13.90
17.40
640 nm
13.70
17.20
660 nm
13.60
17.00
680 nm
13.50
16.90
700 nm
13.40
16.80
Calculated Relative Intensity Colors of Hetaerolite in Air
Relative Intensity
0%
70%
100%
140%
210%
280%
350%
420%
490%
560%
610%
R1
R2
Calculated Properties of Hetaerolite
Electron Density:
Bulk Density (Electron Density)=4.70 gm/cc note: Specific Gravity of Hetaerolite =5.02 gm/cc.
Fermion Index:
Fermion Index = 0.01 Boson Index = 0.99
Photoelectric:
PEHetaerolite = 26.07 barns/electron U=PEHetaerolite x rElectron Density= 122.41 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hetaerolite is Not Radioactive
Chemical Formula: 
