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image: Dried-up stream bed just below dam exposes wide vein (1.5m) of granite intruding Silurian hornfels, at the margin of G4 Granite; smaller veins penetrate country rock on either side.
Dried-up stream bed just below dam exposes wide vein (1.5m) of granite intruding Silurian hornfels, at the margin of G4 Granite; smaller veins penetrate country rock on either side.
 
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