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 is formed from sediments of small grains, usually quartz. The individual grains may be visible, and can be loosely cemented, often rubbing off in your hand. Limestone usually is composed of finer grained material of calcite origin, such as sea shells, or precipitates of calcite origin.Limestone will effervesce in slightly acidic solutions such as vinegar because of the chemical reaction of calcium carbonate with acid.Sandstones will not have this reaction. think you have it confused, dolomite and limestones are not the same thing: Limestone is composed of calcite or calcium carbonate, CaCO3, and dolostone is composed of dolomi â¦ te or calcium magnesium carbonate, Ca,Mg(CO3).