#MinCup23 QUARTER-FINALS 2:
Giant-killer #Stibnite grinds against the Mohs hardness 9 #Corundum. Will your love of beauty lead you to the original kohl or the colourful gem?

Vote: https://www.mineralcup.org/2023/campaigns/round-3-match-2

Results: https://www.mineralcup.org/results/round-3-match-2