Rapping his knuckles on the display screen he said, "In the past two hours the copper content has gone down six percent."
The copper content must be greater than the lime content in order to create a blue frit.
She is constructed of iron with a high copper content which has contributed to her longevity.
The diet of the elderly may contain a lower copper content than the recommended daily intake.
The copper content gives it a distinct reddish shade.
Its extra copper content encourages the eutectic behaviour and gives a lower freezing point.
Police have no leads but suspect that it is the latest victim of scrappers based on its copper content.
With a very high copper content, this may appear on gold mixtures.
It is important as an ore for its copper content of about 63 percent by mass.
We already discovered that the copper content has changed over the years.