| People have always been fascinated by precious stones because of their lustre. But not only polished gems shine. Each raw mineral has, such as mica flakes in the river sand show, its very special characteristic luster. Gloss isn't simply measurable. It is usually described by comparison with objects ... morePeople have always been fascinated by precious stones because of their lustre. But not only polished gems shine. Each raw mineral has, such as mica flakes in the river sand show, its very special characteristic luster. Gloss isn't simply measurable. It is usually described by comparison with objects of everyday life ... (in german) |
| For Mineral collectors who travel in their vacation to the mining area of La Union, the mina Precaución is an easy to reach and in 2010 a worthwhile target to collect attractive pieces with hemimorphite, calcite and more minerals on contrast rich matrix. Equipped with helmet, forehead lamp, chisel ... moreFor Mineral collectors who travel in their vacation to the mining area of La Union, the mina Precaución is an easy to reach and in 2010 a worthwhile target to collect attractive pieces with hemimorphite, calcite and more minerals on contrast rich matrix. Equipped with helmet, forehead lamp, chisel and hammer nice pieces can be rescued easily, taking into account the security rules for mining visits. |
| ... Man glüht in der rauschenden Flamme eines Bunsenbrenners ein Magnesiastäbchen bis zur Rotglut aus. Mit dem heißen Magnesiastäbchen wird eine kleine Menge Borax oder Phosphorsalz aufgenommen und vorsichtig in die Brennerflamme gebracht. Unter ständigen Drehen wird das Salz so lange in der Brenner ... more... Man glüht in der rauschenden Flamme eines Bunsenbrenners ein Magnesiastäbchen bis zur Rotglut aus. Mit dem heißen Magnesiastäbchen wird eine kleine Menge Borax oder Phosphorsalz aufgenommen und vorsichtig in die Brennerflamme gebracht. Unter ständigen Drehen wird das Salz so lange in der Brennerflamme gedreht, bis eine klare Perle entstanden ist. Dieser Vorgang wird so lange wiederholt, bis eine Perle von ca. 4 -5 mm entstanden ist ... ein Beitrag von Andreas B. |
| On the site of Sos Enattos mine exploitation in shafts and tunnels is known since the Roman times. In 1960, with the exploitation of the deposit, these tracks have been permanently deleted. Initially, it was operated in the mining of silver and galena and only in modern times to sphalerite... (Wri ... moreOn the site of Sos Enattos mine exploitation in shafts and tunnels is known since the Roman times. In 1960, with the exploitation of the deposit, these tracks have been permanently deleted. Initially, it was operated in the mining of silver and galena and only in modern times to sphalerite... (Written in german) |