sedimentary
Wishing Stone (Basalt/Siltstone with Quartz/Calcite vein)
Carbonaceous Siltstone with Quartz (SiO2) or Calcite (CaCO3) vein
Hardness: 3-7 (depending on vein vs. host), Color: Grey/Black with a white/cream band, Luster: Dull/Earthy, Crystal Structure: Microcrystalline, Texture: Fine-grained, rounded by water erosion.
- Hardness
- 3-7 (depending on vein vs
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Physical properties
Hardness: 3-7 (depending on vein vs. host), Color: Grey/Black with a white/cream band, Luster: Dull/Earthy, Crystal Structure: Microcrystalline, Texture: Fine-grained, rounded by water erosion.
Formation & geological history
Formed as fine-grained sediment in low-energy aquatic environments. The white line is a mineral vein that formed later when mineral-rich water filled a crack in the rock and crystallized. The rounded shape is the result of mechanical weathering in a river or beach.
Uses & applications
Primarily collected as keepsakes, pocket stones, or for decorative use in landscaping and aquariums.
Geological facts
In folklore, a stone with a single continuous white band encircling it is often called a 'Wishing Stone.' Legend says if you make a wish and throw it back into the water, or give it to someone else, the wish will come true.
Field identification & locations
Identified by the distinct white horizontal band contrasting against a darker host rock. Commonly found on cobble beaches and in riverbeds globally.
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