sedimentary

Shiva Lingam

Cryptocrystalline Quartz (Jasper/Chalcedony) with Iron Oxide inclusions

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: Brown, tan, reddish-brown with grey or yellow patches; Luster: Dull to waxy; Structure: Microcrystalline; Specific Gravity: Approx 2.65.

Hardness: 6
Color: Brown, tan, reddish-brown with grey or yellow patches
Luster: Dull to waxy

Identified March 21, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7 (Mohs scale); Color: Brown, tan, reddish-brown with grey or yellow patches; Luster: Dull to waxy; Structure: Microcrystalline; Specific Gravity: Approx 2.65.

Formation & geological history

Formed as silicates and iron oxides from the Narmada River in India. These stones are naturally tumbled and shaped by the river's current over centuries, though they are often manually polished to enhance their finish.

Uses & applications

Primarily used for spiritual and religious practices in Hinduism, decorative ornaments, and by crystal collectors for metaphysical purposes (representing fertility and cosmic energy).

Geological facts

They are gathered once a year during a ceremony at the Narmada River. In Hindu tradition, they represent the Lord Shiva. Geologically, they are unique because they are composed of a mix of agate, jasper, and basalt found only in this specific riverbed.

Field identification & locations

Identify by its distinctive ellipsoidal or 'egg' shape and unique banded patterns of earth tones. They are found exclusively in the Narmada River in Onkareshwar, India. Collectors should look for smooth surfaces and clear, concentric banding.