mineral
Hag Stone (Quartz Pebble with Natural Hole)
Quartz (Silicon Dioxide - SiO2)
Hardness: 7 on Mohs scale. Color: Translucent grayish-white, milky. Luster: Vitreous to waxy. Crystal Structure: Trigonal/Hexagonal microcrystalline or massive. Cleavage: None (conchoidal fracture). Features a naturally eroded hole passing entirely through it.
- Hardness
- 7 on Mohs scale
- Color
- Translucent grayish-white, milky
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 on Mohs scale. Color: Translucent grayish-white, milky. Luster: Vitreous to waxy. Crystal Structure: Trigonal/Hexagonal microcrystalline or massive. Cleavage: None (conchoidal fracture). Features a naturally eroded hole passing entirely through it.
Formation & geological history
Formed through the erosion of quartz-bearing rock followed by stream or ocean wave action. The hole is typically created over long periods by water erosion, wave action tumbling pebble against pebble, or boring organisms such as sponges or mollusks.
Uses & applications
Historically used as folk magic amulets (protectors against evil or bad dreams). Today, popular among beachcombers, lapidary hobbyists, and collectors of naturally pierced stones for jewelry and lucky charms.
Geological facts
Hag stones, also known as adder stones, witch stones, or Odin stones, are rare natural pebbles with a naturally eroded hole through them. Folklore holds that looking through the hole allows one to see into the realm of fairies or see through glamours and illusions.
Field identification & locations
Look for rounded quartz or flint beach pebbles that feature a smooth, naturally worn hole piercing all the way through the stone without artificial drill marks. Commonly found along gravel beaches, riverbeds, and coastal regions worldwide.
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