Brightly colored Ceylonese gem tourmalines were brought to Europe in great quantities by the Dutch East India Company to satisfy a demand for curiosities and gems. At the time,[when?] it was not realised that schorl and tourmaline were the same mineral, as it was only about 1703 that it was discovered that some colored gems were not zircons.[citation needed] Tourmaline was sometimes called the “Ceylonese Sri Lankan Magnet” because it could attract and then repel hot ashes due to its pyroelectric properties.[2][4]
Tourmalines were used by chemists in the 19th century to polarize light by shining rays onto a cut and polished surface of the gem.
We own and work with coal mines in 3 provinces of Pakistan. Our production areas origins in Punjab and extends to Balochistan and Khyber PK.
CHAKWAL
1 Tawakkal Coal Mine, at Lafi, Tehsil Kalar Kahar, District Chakwal.
2 Sattar Coal Mine, at Noor Pur Sethi, Tehsil Kalar Kahar, District Chakwal.
KPK
Darra Adam Khail.
BALOCHISTAN
1 Dukki.
2 Chamaling.
3 Harnai.
