Environment: Most abundant secondary minerals in the oxidized zones of hydrothermal U-Mo deposits.
Locality: U-Mo deposit of the Alexandrovskii mine, Udokan Range, northern Zabaikal’e, Russia. Link to MinDat.org Location Data.
Comments: Yellow aggregates of iriginite on matrix.
Location: Cameron area, Coconino County, Arizona, USA. Scale: Picture size 2.5 mm.
Optical Data: Biaxial (-), a=1.73-1.764, b=1.82-1.889, g=1.93-1.936, bire=0.1720-0.2000, 2V(Calc)=58-90, 2V(Meas)=60.
note: Specific Gravity of Iriginite =4.24 gm/cc.
Iriginite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 10.63 ± 2.66 grams of pure Iriginite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 1063.2 ±265.80 grams of pure Iriginite .