boghead mineral मीनिंग इन हिंदी

उदाहरण वाक्य

1. He became superintendent of the Glasgow oil works in Scotland, Geary Miller & Company, where the boghead mineral was being processed under the Scottish chemist lamp wicks with brilliancy.
2. "Canada pitch " was of a limited supply so Atwood experimented with gas coals of the Ohio valley, the albertite of New Brunswick, the boghead mineral from Scotland, Trinidad pitch, and petroleum.