Assaɣa iyat kul ən haratan wən darat sund haratan meɣ əmik ən minéraux: oxygène, cobalt, phosphore, azote, graphite, quartz, carbone əd əmik wan argile.
Oxygen, cobalt, nitrogen d carbon aqqalan haratan Phosphorus, graphite, quartz, d akal aqqalan isuj