Post magmatic hydrothermal activity in an alkali olivine basalt from the last-stage lava of a volcanic sequence. Probable dehydration product of lanthanite-(Nd). End-member of the a ncylite group.
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Physical Properties of Kozoite-(Nd)
Color:
Pale pinkish purple, White.
Diaphaneity:
Transparent
Habit:
Microscopic Crystals - Crystals visible only with microscopes.
Luster:
Vitreous - Dull
Optical Properties of Kozoite-(Nd)
Gladstone-Dale:
CI calc= -0.027 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1672,KC= 0.1628 Ncalc = 1.72
Optical Data:
Biaxial (?), a=1.698, g=1.78, bire=0.0820
Calculated Properties of Kozoite-(Nd)
Electron Density:
Bulk Density (Electron Density)=3.97 gm/cc note: Specific Gravity of Kozoite-(Nd) =4.42 gm/cc.
Fermion Index:
Fermion Index = 0.07 Boson Index = 0.93
Photoelectric:
PEKozoite-(Nd) = 343.91 barns/electron U=PEKozoite-(Nd) x relectron=1,364.49 barns/cc.
Radioactivity:
GRapi = 60,011.32 (Gamma Ray American Petroleum Institute Units)
Concentration of Kozoite-(Nd) per GRapi unit = 16.66 (PPM)
Kozoite-(Nd) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 7.56 cm
1,403,947
3.79E-05
60,011.32
19.73
100 gm / 3.51 cm
140,395
3.79E-06
6,001.13
1.97
10 gm / 1.63 cm
14,039
3.79E-07
600.11
0.20
1 gm / 7.56 mm
1,404
3.79E-08
60.01
0.02
0.1 gm / 3.51 mm
140
3.79E-09
6.00
0.00
0.01 gm / 1.63 mm
14
3.79E-10
0.60
0.00
0.001 gm / 0.76 mm
1
3.79E-11
0.06
0.00
Weight of pure Kozoite-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.42 gm/cc.*
Goverment Estimate of Average Annual Exposure (
360 mRem)
** Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 3.12 % Th) From Sum REE Elements (62.47 % REE)