igneous
Wishing Stone (Quartz-Veined Basalt)
Amygdaloidal Basalt with Quartz (SiO2) vein
Hardness: 6-7 (Mohs scale), Color: Dark grey or black matrix with a distinct white band, Luster: Dull/earthy matrix with glassy vein, Structure: Fine-grained igneous matrix, Cleavage: None
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Physical properties
Hardness: 6-7 (Mohs scale), Color: Dark grey or black matrix with a distinct white band, Luster: Dull/earthy matrix with glassy vein, Structure: Fine-grained igneous matrix, Cleavage: None
Formation & geological history
Formed from cooling lava flows where cracks later filled with hydrothermal fluids rich in silica, precipitating into quartz veins; often found as water-worn pebbles on beaches.
Uses & applications
Primarily used as pocket stones, decorative beach pebbles, and in metaphysical practices (luck/wishing stones).
Geological facts
Folklore suggests that if a stone has a single continuous white line encircling it, it can grant a wish. Geologically, it represents the intersection of volcanic activity and hydrothermal mineral deposition.
Field identification & locations
Identify by a solid, unbroken white line contrasting against a dark, rounded host rock. Common on coastal beaches or riverbeds in volcanic regions like the Pacific Northwest or Scotland.
