Indian Iron Tantric Lingam

Green-gray and glassy, with a thin rust ring near the top and another near the foot.

This tantric lingam is from Narmada River, Madhya Pradesh, India. It is quartz crystal & iron. The article describes Banalinga as chalcedony, a cryptocrystalline quartz with iron oxide deposits, and says scholars link their naturally occurring markings, considered spiritually auspicious, to meteoric iron. Tall and softly oval, with a smooth, glossy surface in soft sage green fading to gray. A narrow rust-red line circles near the crown, and a second runs near the base. A long highlight streaks down the face. It is 19.75 inches high and 10.5 in diameter.

Neat bands, drawn without the aid of a ruler.