sedimentary

Shiva Lingam

Cryptocrystalline Quartz (Jasproid/Chalcedony mix)

AI-generated identification · may be incorrect

Hardness: 7 Mohs; Color: Tan, brown, and grey with darker reddish-brown patches; Luster: Waxy to dull (smooth when tumbled); Structure: Microcrystalline; Specific Gravity: 2.6-2.7

Hardness: 7 Mohs
Color: Tan, brown, and grey with darker reddish-brown patches
Luster: Waxy to dull (smooth when tumbled)

Identified May 9, 2026More sedimentary →

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Physical properties

Hardness: 7 Mohs; Color: Tan, brown, and grey with darker reddish-brown patches; Luster: Waxy to dull (smooth when tumbled); Structure: Microcrystalline; Specific Gravity: 2.6-2.7

Formation & geological history

Found in the Narmada River in Onkar Mandhata, India. These stones are naturally tumbled and smoothed by the river flow over centuries. They are composed of cryptocrystalline quartz with inclusions of iron oxide (agate and jasper).

Uses & applications

Primarily used for religious worship in Hinduism, meditation, crystal healing, and as decorative collectibles.

Geological facts

The Shiva Lingam is considered a sacred symbol of the Hindu deity Lord Shiva. The shape represents male energy (knowledge), while the markings represent female energy (wisdom). They are only sourced from one river in the world.

Field identification & locations

Identify by its distinctive egg-shape and bandings of dark brown against a tan background. Collectors should look for symmetry and the presence of natural river erosion versus machine-tumbled imitations.