Viloco Mine (Araca Mine)

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Loayza Province, La Paz, Bolivia

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Key Information

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  • The Viloco Mine, also known as Araca Mine, is located in Loayza Province, La Paz, Bolivia, at 4775 meters elevation, near Luribay, known for wine and fruit production.

  • It primarily produces cassiterite (tin ore), with secondary minerals like tungsten, and is unique for facettable cassiterite crystals.

  • The geological structure involves Sn-polymetallic veins in shale and sandstone, associated with the Quimsa Cruz Batholith.

  • Mining started in 1902, uses underground methods, and is still active, with a history of nationalization and new vein discoveries.

  • The area has a cold climate, with temperatures ranging from 45–52°F daytime and below freezing at night, and a rainy season from December to March.

  • Luribay, nearby, is culturally significant as the birthplace of former president José Manuel Pando, with scenic valleys and mountains.

Location and Minerals

The Viloco Mine sits high in the Andes, near Luribay, a town famous for its wine and fruit markets. This location, at 4775 meters, places it in a region with other notable mines like Santiago and Hugo, offering mineral enthusiasts a rich area to explore.

Geological and Mining Insights

Research suggests the mine’s geology features Sn-polymetallic veins within shale and sandstone, linked to the Quimsa Cruz Batholith. Mining, active since 1902, involves underground methods and has seen nationalization, with new veins discovered over time, adding to its historical depth.

Cultural and Environmental Context

The evidence leans toward Luribay’s cultural importance, being the birthplace of José Manuel Pando, with scenic beauty enhancing the experience. The climate is cold, with significant temperature swings, and the ecology features high-altitude grasses and shrubs, interesting for ecological studies.