These brick-shaped building blocks are known as Copperhouse slag or scoria blocks. This is a typical example. They were cast from the residue of the copper smelting works that operated at ...

Ted Orenstein, a former money manager for Steven A. Cohens troubled hedge fund, will join Scoria Capital Partners where he will focus on industrial stocks. Orenstein starts trading at Scoria, which is ...

Hold in position with bulldog clips. Step 3 Add 25mm of scoria to base of the bed. Step 4 Coil agricultural (ag) pipe around scoria bed, with cap end sitting on rim of garden bed. Cover pipe with ...