This is intended as a list of, or links to, stone currently or historically produced in various countries (not generic types of stone).
See also:
Greece
Italy
United Kingdom
Limestone
Also see:
... of photosynthesis is: 6H2O + 6CO2 + light → C6H12O6 (glucose) + 6O2 In simple English terms, this is carbon dioxide plus water plus light (energy) yields oxygen ...