The minerals are left behind as a residue or ash and are found throughout the successive earth strata in which they were created. Mineral matter, found in all vegetation, consists of calcium, iron, copper, and other inorganic materials. Calcium is being created continuously in vegetation and appears in the limestone strata of the earth. Sandstone is created by sand crystals of silica, which is a direct fixation of photosynthesis, occurring only in shallow seas and never at depths below which the sun’s rays penetrate.
La materia mineral, que se encuentra en toda la vegetación, consta de calcio, hierro, cobre, y otros materiales inorgánicos.El calcio se está creando continuamente en la vegetación y aparece en los estratos de piedra caliza de la tierra.La arenisca es creada por cristales de arena de sílice, que es una fijación directa de la fotosíntesis, que ocurre sólo en aguas poco profundas y nunca a profundidades por debajo del cual los rayos del sol penetran.