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 ...

In 2012, NASA's Mars Rover Curiosity photographed an outcrop with sedimentary structures resembling Earth's cross-bedded sandstones. The cross bedding, with large-scale layers sloping to the left, ...

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 ...