@Fabiusfax Se qualcuno volesse approfondire c'è un bel report del Governo USA del 2017 (862 pagine). Critical mineral resources of the United States—Economic and environmental geology and prospects for future supply https://t.co/GCXucraOeN https://t.co/Mfy
1,448 followers
3,303 followers
トランプ政権が好きそうなトピックであるCritical Minerals(日本語だと「元素戦略」かしら)は引き続き力入れてる印象。USGSのCritical 23はSb, Ba, De, Co, F, Ga, Ge&In, 黒鉛, Li, Mn, Nb&Ta, 白金族, 希土類, Re, Se, Te, Sn, Ti, V, Zr, Hf。 https://t.co/LHj68Q75Eb
2 followers
2,564 followers
@trevorsumner #titanium, #tantalum and #rare earth materials mainly. @USGS did a study naming these materials: https://t.co/6282lforit