Today is another special day 2 a ago during #hedgewatch on #LaGomera's highest point during #sunset the "thing with the ring" happened
The #gemstone on the #EngagmentRing is a #sapphire a variety of the #mineral #corundum which is aluminium oxide #Al2O3

#MinCup24 ROUND 1 MATCH 2: #Arsenuranospathite vs #Corundum

It's a tough choice, arsenuranospathite's elemental cocktail or corundum's sparkling gem qualities paired with high Mohs hardness? Campaign, learn, share, & VOTE!

@MineralCup

https://www.mineralcup.org/2024/vote/r1m02

Corundum var ruby (Al2O3) in schist matrix. Fluorescent under long frequency UV light. From Mysore corundum deposits, Karnataka, India
#corundum #ruby #fluorescent #minerals #crystals #geology #Mincup23