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<nowiki>izkopni material; delving material; викопний матеріял; delfstof; rocks and minerals that can be used for the benefit of humanity and which can be extracted from the ground economically advantageous; stoffelijke, natuurlijke hulpbron; копалина</nowiki>
delving material
rocks and minerals that can be used for the benefit of humanity and which can be extracted from the ground economically advantageous
See also category: Quarries by material.
