#Corundum

#MinCup2020 @MineralCupVOTE (for #garnet)!#Almandine vs #Corundum?Although I like both very much, I definitely vote for Almandine GARNET!(here in the cover photo of Lithos a few yrs ago)(continues) Corundum is beautiful,

when corundum synthesis was perfected, a long-held marker of status and wealth was shockingly destabilised... OR WAS IT? Today I will bust open the Ruby Myth and show rubies and

It's 2020, the year where anything can happen.The #MinCup2020 bracket is sticking to the rules with all official minerals. Voting starts September 1st.Who will join legends #Olivine (2017), #Garnet (2018),

Vivien Parmentier

Hot Jupiter have been puzzling us for a while ! Their nightside looks cooler than we expect and the thermal structure seems much more symmetrical than expected. Today with @jjfplanet