metamorphic
Wishing Stone (Veined Pebble)
Quartz-veined Metasedimentary Pebble
Hardness: 6-7 on Mohs scale. Color: Dark reddish-brown to grey matrix with a prominent continuous white quartz vein running completely around the pebble. Luster: Dull to vitreous on the vein. Texture: Smooth, water-worn beach/river pebble.
- Hardness
- 6-7 on Mohs scale
- Luster
- Dull to vitreous on the vein
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Physical properties
Hardness: 6-7 on Mohs scale. Color: Dark reddish-brown to grey matrix with a prominent continuous white quartz vein running completely around the pebble. Luster: Dull to vitreous on the vein. Texture: Smooth, water-worn beach/river pebble.
Formation & geological history
Formed when a fine-grained sedimentary rock (like siltstone or mudstone) underwent regional metamorphism. Tectonic stress created fractures in the host rock, through which silica-rich hydrothermal fluids flowed, depositing quartz in the cracks. Subsequent erosion rounded the specimen into a pebble.
Uses & applications
Popular among beachcombers and rock collectors as 'wishing stones'. Used in decorative pebble arrangements, landscaping, and crafts.
Geological facts
In folklore, a 'Wishing Stone' is a rock with a single, unbroken white line completely encircling it. Legend says if you trace your finger around the line while making a wish and throw it into the sea (or keep it close), your wish will come true.
Field identification & locations
Identified by a distinct, solid white band (quartz or calcite) encircling a rounded matrix stone. Commonly found on beaches, riverbeds, and glacial till deposits worldwide.
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