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#MinCup2019 semifinals at @PMEUBC:
#Quartz: from Arkansas, USA
Amethyst: from Anahi Mine, Bolivia
#Calcite: detailed description of how 12% by mass is atmospheric carbon from 495 million years ago, what that tells us about ancient worlds, & how carbon is captured into crystal
#Quartz: from Arkansas, USA
Amethyst: from Anahi Mine, Bolivia
#Calcite: detailed description of how 12% by mass is atmospheric carbon from 495 million years ago, what that tells us about ancient worlds, & how carbon is captured into crystal
If you can’t grow it, you mine it.
I’ve seen plenty of #MinCup2019 arguments that #quartz is in smartphones, but it doesn’t seem like many realize #calcite. Both semifinalists are in your phone display screen.
I’ve seen plenty of #MinCup2019 arguments that #quartz is in smartphones, but it doesn’t seem like many realize #calcite. Both semifinalists are in your phone display screen.
#Calcite & #quartz are battling it out in the semifinals of #MinCup2019. Quartz took a strong early lead, but calcite is creeping closer.
Quartz has never won despite the entire competition being founded to promote it.
I voted calcite.
Quartz has never won despite the entire competition being founded to promote it.
I voted calcite.
