August 31st, 2010 
Florian
Mineralized skarn
Location :
In Burguillos del Cerro, Extremadura. In the Jerez de los Caballeros direction, a few hundreds meters from the village.
Burguillos del Cerro, from the mine
Geological context :
Mineralized skarn, at the contact between Cambrian limestones and the batholite of Burguillos del Cerro.
Works :
Deposit exploited for the iron until the 70s.
One principal 150 m gallery and two secondaries ones.
Cleanings are on three levels. The exploited ore was magnetite, whereas the vonsenite (very rich in iron too) was rejected due to non-existant treatment known.
View on the clearings and the mine
Mineralization :
Frequent minerals : magnetite, hornblende (a few centimeters long), actinolite, andradite garnet (var. melanite), vonsenite (rare iron borate in layers), löllingite (between the vonsenite layers), pyrite, calcite, epidote.
Vonsenite
Actinolite
Garnets (melanite)
Bibliography :
Revista de Minerales, 2002 (2)
Posted in 
Tags: 
