| Pierrefitte, France | 
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    Elements: Gallium
    Location: Pierrefitte-Nestalas
    Scientist: Boisbaudran
  
| source of the ore for Gallium | in the French Pyrenées | City Hall | some industry remains | historic mine area | 
| a minor (but paved) road | road follows a mountain stream | seams of sulfide ores | Looking down on Pierrefitte-Nestalas | Cutoff to La Galène mining area. | 
| dirt road up to the mine area | Talus slopes | Top of the mine | ancient smelter | Slag remaining | 
| Closeup of slag | Huge talus slope | Searching for rocks and minerals | Gallium was found in sulfides | Scars are common | 
| take another highway up | to Gavarnie from Pierrefitte-Nestalas | to Gavarnie | park area | National Park of the Pyrénées | 
| mountains tower to over 3000 m | geological feature | 
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