I'm going with #quartz this round of #MinCup26. Even though it doesn't produce laser light, quartz IS a very important optical material. You can easily use it to make the windows and mirrors and lenses in your laser. Never met #asagiite, laser potential seems unlikely.
@mineralcup.bsky.social#MinCup26 Round 1 Match 6
It's a classic vs a newbie as the most common named mineral in the crust #Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago #Asagiite.
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