List of Black Sapphire companies (Minerals & Metallurgy)

bluecoal investment

bluecoal coal is a nigerian bassed company that deals in exportingverious kinds of rough gemsones. the located jos state capitalof plateau state, Nigeria, we have total number 27 workers, get our mine gemsfrom ibadan, nisama, and some part kaduna bauchi state. blue registerd with coorprate ...

Telephone：234-80-32585811Address：Aa90 Nassarawa Gwong
BLUECOAL NIGERIA ENT

We are aleading Manufacturer / Exporter of all kinds coloured and non semi-precious stones such as tourmaline, amethyst, quartz, garnets, rogh diamonds. also deal in solid minerals tin ore, copper tantalite many more. . offer our products at very copetitive prices we deliever worldwide via air ...

Telephone：234-703-1261441Address：Aa90 Nassarawa Gwom