- Panasqueira
Panasqueira is a one of the largest
tungsten mines in the world. It is located inCastelo Branco ,Portugal .Mineral specimens
The current low price of tungsten and the competition from other sources means that commercial operation is tough. This classic locality has for over 100 years produced, and keeps on producing, fine collector specimens. These include exceptional specimens of
fluorapatite ,ferberite ,arsenopyrite ,siderite ,quartz and numerous other species such as:chalcopyrite ,sphalerite ,dolomite ,calcite ,mica ,tourmaline ,fluorite ,topaz andtriplite . It has also produced some very rare minerals includingpanasqueiraite andthadeuite . The great feature of these specimens, apart from their quality, is the fact that they almost always combine quite a few mineral species, so theparagenesis has made this mine famous throughout the world.For many years the sale of
mineral specimens from the mine was forbidden, as tungsten was a strategic mineral. Quite a few years ago, and at the same time as Portugal began to change after its entry into theEuropean Union , things began to become easier. However, unfortunately, obtaining good specimens has once again become more difficult, but this time due to the way the mine is worked and the lower grade seams.External links
* [http://www.fabreminerals.com/specimens/RSPOR-portugal-notable-specimens.php#Panasqueira Panasqueira mineral specimens]
* [http://www.fabreminerals.com/include/Panasqueira_intro/Panasqueira_inf_en.html Minas da Panasqueira]
* [http://panasqueira.net Panasqueira, História do património mineiro]
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