Minecraft material (3)
I believe the answer is:
ore
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">minecraft material</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ore that I've seen before include "store of value" , "Mineral containing valuable metal" , "Metal-bearing rock or mineral" , "14 [CURRENCY UNIT]" , "Foreign currency" .)