The Kupol mineralization comprises high-grade gold-silver veins. Veins vary between
segments of single vein and segments with multiple, sub-parallel, or branching veins.
Mineralization is concentrated in distinct shoots separated by areas of barren vein.
Vein thickness is quite variable; one area of the vein in the Big Bend zone is typified by
greater-than-normal thicknesses and better-than-average ore grade. Vein horizontal
widths average approximately 6 m for the deposit as a whole, ranging between 3.5 m
in the South zone and 7 m in the Big Bend zone. Diluted individual ore shoot grades
vary between 12 and 25 g/t gold.