ROCKHOUNDING GRAY AREA DOCUMENTED
Where: UK & Ireland · Europe · approx. 50.33, -5.18 (vicinity only)
Why this spot: Rockhounding locality: WWI-to-WWII wolfram and tin mine on a granite headland near Perranporth, spoil still yielding classic Cornish minerals
What turns up: cassiterite, wolframite, quartz crystals, tourmaline, secondary copper and iron minerals in greisen spoil
Access: Gray area.
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