The mineral deposits that are hidden in the earth and their excavation requires much labour such as gold, silver, oil, gas, etc.
Al-thamarah al-baqiyah
’ard al-hawz
Al-baqarah al-muthirah
Al-ma al-idd
Al- iqalah
Al-itawah
Al-bai‘ li-’ajal
Al-’athari
Al-dhira al-hashimiyah
Al-bai‘ al-fasid