The pale blue color of aquamarine is attributed to Fe2+. Fe3+ ions produce golden-yellow color, and when both Fe2+ and Fe3+ are present, the color is a darker blue as in maxixe. Decoloration of maxixe by light or heat thus may be due to the charge transfer between Fe3+ and Fe2+.[14][15][16][17] Dark-blue maxixe color can be produced in green, pink or yellow beryl by irradiating it with high-energy particles (gamma rays, neutrons or even X-rays).[18]
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.
