sedimentary
Hag Stone
Perforated Flint or Limestone
AI-generated identification · may be incorrectHardness 7 on the Mohs scale for flint; displays natural holes or perforations carved out by water erosion or acid dissolution; white, grey, or tan exterior with a vitreous to dull luster.
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Physical properties
Hardness 7 on the Mohs scale for flint; displays natural holes or perforations carved out by water erosion or acid dissolution; white, grey, or tan exterior with a vitreous to dull luster.
Formation & geological history
Formed through sedimentary processes involving prolonged wave action, running water, or chemical weathering that exploits softer inclusions in the rock, creating natural holes over thousands of years.
Uses & applications
Historically used as protective amulets and talismans in folklore; valued by collectors and spiritual practitioners today.
Geological facts
Also known as adder stones, witch stones, or hole stones, folklore attributes mystical protective powers to them.
Field identification & locations
Found along riverbanks, beaches, and rocky shores; identified by the distinctive natural hole running completely through the rock.
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