sedimentary
Shiva Lingam
Cryptocrystalline Quartz (Jasproid/Chalcedony mix)
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)
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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.
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