eine mehr oder weniger stark verfestigte Ablagerung von Kalziumkarbonat oder einer Mischung von Kalzium-und Magnesiumkarbonat,kennzeichnend fuer Boeden in warmen oder heissen Wuesten oder Wuestensteppen
Hea teada
Tegemist on loodusliku Tšiili salpeetri leiukohast saadud materjaliga "caliche".
... natural Chilean potassic sodium nitrate consisting of a natural mixture of sodium nitrate and potassium nitrate (the proportion of the latter element may be as high as 44%) of a total nitrogen content not exceeding 16,3% by weight, produced in Chile by extraction from the nitrate mineral called 'caliche' by lixiviation with a water solution, followed by crystallisation by differential cooling and/or solar evaporation.
