Other minerals that have been actively mined include copper in the Whitehorse area, lead and zinc in Faro, silver, zinc and lead in the Mayo/Keno City area, asbestos in Clinton Creek, and copper, gold, and coal in the Carmacks area. The world's largest known deposit of tungsten is in the Macmillan Pass area in the Mackenzie Mountains near the Northwest Territories border. Non-metallic minerals mined have included jade and barite.