| This report gives a lot of details of the history of this mine. Contribution from Michael Kommer (written in german language) ... moreThis report gives a lot of details of the history of this mine. Contribution from Michael Kommer (written in german language) |
| This portrait explains the background to the most fascinating natural events on Earth, how are volcanoes build and what causes eruptions, lava flows and lahars. A rich picture book with some stunning shots invites you to dive into the fascinating world of magmatic phenomena. (Article in german) ... moreThis portrait explains the background to the most fascinating natural events on Earth, how are volcanoes build and what causes eruptions, lava flows and lahars. A rich picture book with some stunning shots invites you to dive into the fascinating world of magmatic phenomena. (Article in german) |
| Olivine is not a separate mineral, but a member belonging to the forsterite-fayalite mixing series. Olivine belongs to the olivin-groupe whose end-members are calcio-olivine and tephroite. Forsterite is a magnesium silicate; fayalite an iron silicate. If commonly is spoken of olivine, it is usually ... moreOlivine is not a separate mineral, but a member belonging to the forsterite-fayalite mixing series. Olivine belongs to the olivin-groupe whose end-members are calcio-olivine and tephroite. Forsterite is a magnesium silicate; fayalite an iron silicate. If commonly is spoken of olivine, it is usually a more or less iron-rich forsterite. The color of olivine is generally yellowish green, olive green to black. You will find much more interesting details in our portrait about this common mineral series. Written and investigated by Peter Seroka. (Article in german) |
| Die Viloco Mine liegt hoch über der Ortschaft Viloco auf bis zu über 4900m. Die Mine zieht sich dabei über mehrere hundert Meter entlang des Berges in die Höhe. Sie befindet sich im "Cordillera Quimsa Cruz" (Aymara-Sprache) oder "Kimsa Krus" (Quechua-Sprache) oder auch "Tres Cruces" (deutsch "drei K ... moreDie Viloco Mine liegt hoch über der Ortschaft Viloco auf bis zu über 4900m. Die Mine zieht sich dabei über mehrere hundert Meter entlang des Berges in die Höhe. Sie befindet sich im "Cordillera Quimsa Cruz" (Aymara-Sprache) oder "Kimsa Krus" (Quechua-Sprache) oder auch "Tres Cruces" (deutsch "drei Kreuze") genanntem Gebirgszug im Departamento La Paz. Zahlreiche Stolleneingänge und meist verfallene Bergwerksbauten zeugen von einer umfangreichen Bergbautätigkeit. Verschiedene Quellen schreiben auch von Araca Mine, der Name sei quasi austauschbar. Hierbei handelt es sich um einen historischen Namen. |