Indian Iron Tantric Lingam

A deep oxblood cap melts down a smooth oval like paint poured from the top.

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, narrow ovoid sitting on a small black disc. A glossy maroon field covers the upper two thirds with a ragged lower edge, fading into olive-khaki below. The finish is polished enough to catch a bright window reflection. It is 9.5 inches high and 5 in diameter.

Patience and a river did all the sculpting here.