Božana Pašić
geoboz_
Reasons why #Quartz is superior over #Forsterite and #Zircon (#zircyawn).... a thread #MinCup2020 @MineralCup Apart from #quartz being the second most abundant mineral in the crust, its vast and varied
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Reasons why #Opal is superior over #Halite... a thread Opal, opalline silica, silica etc. are all essentially the same chemical formula SiO2.nH2O, and guess what... they're EVERYWHERE. No I mean
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