Partly purified copper with a blistered surface formed during smelting.
- ‘According to the Namibian chamber of mines, operations at the smelter complex were satisfactory, resulting in production of 17850 tonnes of blister copper.’
- ‘This followed the production of the first blister copper from the mine.’
- ‘With the expansion projects on stream, production is poised to reach 30000 tonnes per year of blister copper from 2007 onwards.’
- ‘The company will further improve capabilities of the anode furnaces with the installation of a blister copper holding furnace.’
We take a look at several popular, though confusing, punctuation marks.