rescue v. c.1300, from stem of Old French rescorre protect, keep safe; free, deliver (Modern French recourre), from re-, intensive prefix (see re-), + escourre to cast off, discharge, from Latin excutere to shake off, drive away, from ex-out (see ex-) + -cutere, combining form of quatere to shake (see quash).
Rockhound. Sandstone is a sedimentary rock composed of cemented weathered grains of rock, most abundantly, quartz grains from granite. Quartzite is metamorphosed sandstone, the product of intense pressure and heat which has caused the individual grains to recrystallize into larger crystals which are interlocked.uartzite is the metamorphic product of sandstone. During metamorphism, intense heat and/or pressure cause the quartz grains contained in the sandstone grow and recrystallize, â¦ interlocking together creating Quartzite. 4 people found this useful.
Sandstone can be broken down into two major groups: arenites and wackes. At least 15% of a wacke is made up of matrix material between the sand grains. Arenites have little or no matrix material, with just spaces and new mineral growth cement between the grains.