Featured News. Greens Sand has been in the silica sand industry since 1979 and has been a distributor of specialised silica sand to the Industrial as well as Leisure market for over 30 years, distributing nationally and across borders. We store a wide range of grades of silica sands.
On the aluminum cap atop the Washington Monument in Washington, DC are two words: Laus Deo. It is true that the words Laus Deo are inscribed on one face of the aluminum point which crowns the apex of the Washington Monument.ashington continues to Give Praise to God On the aluminum cap atop the Washington Monument in Washington, DC are two words: Laus Deo. No one can see these words. In fact, most visitors to the monument have no idea they are even there and...for that matter...probably couldn't care less!
Without minerals you could not put pen to paper. The writing tips of pens are made with a strong metal called tungsten which comes from wolframite and scheelite ores. Think about the properties of tungsten: Strong; Rigid; Impermeable; You can see why we make pen nibs from tungsten. Paper is usually made of wood pulp mixed with minerals like clays, mica, talc and baryte. Lead pencils do not contain lead. The 'lead' is made of a mixture of clay and a mineral called graphite - a form of carbon. Think about the properties of graphite: Soft ; Easily powdered ; Opaque (not see-through) You can see why we make pencils from graphite.