Discovered in drill core. The Jadar Basin is composed of a sequence of oil-shales, dolomicrites and pyroclastic deposits of Neogene (Early to Middle Miocene) age. New structure type .
IMA Status:
Approved IMA 2006 (Dana # Added)
Locality:
Jadar Basin, Serbia. Link to MinDat.org Location Data.
Anhedral Grains - Granular minerals without the expression of crystal shapes
Habit:
Microscopic Crystals - Crystals visible only with microscopes.
Luminescence:
Fluorescent, Short UV=weak pink orange, Long UV=weak pink orange.
Optical Properties of Jadarite
Gladstone-Dale:
CI meas= -0.013 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.001 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2216,KPDmeas= 0.2243,KC= 0.2214 Ncalc = 1.54 - 1.55
Optical Data:
Biaxial (?), a=1.536, g=1.563, bire=0.0270
RL Bireflectance:
Weak.
RL Color:
Dark gray with abundant white internal reflections.
RL Pleochroism:
None.
Calculated Properties of Jadarite
Electron Density:
Bulk Density (Electron Density)=2.44 gm/cc note: Specific Gravity of Jadarite =2.48 gm/cc.
Fermion Index:
Fermion Index = 0.03 Boson Index = 0.97
Photoelectric:
PEJadarite = 0.84 barns/electron U=PEJadarite x rElectron Density= 2.06 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Jadarite is Not Radioactive
Jadarite Classification
Dana Class:
54.02.04.02(54)Nesosilicate Borosilicates and Some Beryllosilicates
Chemical Formula: 