Las Manforas mine History (1854-1989)
The Real Compañía Asturiana de Minas ( RCAM ) , exploited the "Las Manforas" Aliva mine.
In 1862 at the Mining Exhibition held in London , the R.C.A.M. was awarded for the copies submitted caramel sphalerite from Áliva However, its operation in high mountainous area subject to harsh winters, in the nineteenth century entailed a painful condition , so were many neighbors espinamenses and other nearby villages who preferred to opt for emigration to America before work in the mines.
The Count of Saint- Saud, in año1891 and refers to the terrible state of the coffer of Liordes , affected by harsh winters , with rotten floors , no shutters was ... A few years later , in 1912 , and listed as demolished.
Despite these harsh conditions , miners were willing to spend the winter in the galleries locked against what was normal then. In the absence of roads at that time , mining companies infrastructure implemented mineral transladar.
In 1857, mining was recorded by the Mining Company "Providencia" with the name of "La Almanzora" and this name appears in official documents and geological maps of the time.
The popular phonetic miners and villagers in and around Camaleño changed the phoneme "La Almanzora" by "La Manfora" or "Las Manforas".
Thus, in 1898, the Real Compañía Asturiana de Minas install a cable to lower ore from Lloroza to Fuente Dé. Ovens are also built to calcine the ore. In the early twentieth century, the inhabitants of the area and the multitude of miners employed formulated highly diverse complaints against the mining companies , as these violate the mining regulations and laws of accidents.
In 1968, when the site looked exhausted, a new reef will develop three new plants are located.
Moreove, a new well, completed in 1975, giving access to the six floors of the mine running.
In 1989, there was the closure of the mine Manforas.
The underground mine exploitation Las Manforas had six floors or levels and a depth of 135 meters.
The sphalerite 1st floor was Taffy low quality .
Plant 2nd, 3rd and 4th highest quality sphalerite extracted with a high degree of transparency and purity, and who have reached exceptional gems extract tens of carats.
2nd floor also come great cuboctaédricos galena crystals on white dolomite, sphalerite associated Twinned green.
Moreover, in the 3rd floor were found large crystals of calcite, scalenohedral, sometimes twinned sphalerite with spastic gem quality.
Other minerals that have appeared but of less interest to collectors are the corrugated (exploited in the late nineteenth century), Pyrite, Chalcopyrite, and Fluorite.
Pictures of "Aliva mine" by Carlos Gonzalez Bargueño.la Mineria del Concejo de Espinama