Dioptase and malachite by Louis Verschuren. From Tsumeb in Namibia. It looks like deep emerald crystals having Forbidden Broccoli growing over the top right side.

Vote #Dioptase the rare #pyroelectric #TeamGreen #DesertEmerald through to go against #tugtupite!

A #piezoelectricity versus #pyroelectricity battle for the ages! It's * #ELECTRIC * ;P

Pressure or fire, heating things up to get zappadelic, gotta love that.

www.mineralcup.org/2025/vote/r3...