The first two are crystals of elemental bismuth (the active ingredient in Pepto Bismol). The third looks like cinnabar, a compound of mercury and sulfur.
Ti crystals apparently are iridescent like that, but they have a more ordinary shape when they crystallize (like the shape of quartz crystals). Bi crystals are the only ones with this distinct shape, IIRC.
I fucking love lab grown bismuth crystals.
The first two are crystals of elemental bismuth (the active ingredient in Pepto Bismol). The third looks like cinnabar, a compound of mercury and sulfur.
I was gonna say could the first 2 be titanium, it does get coloration like that, but idk
Ti crystals apparently are iridescent like that, but they have a more ordinary shape when they crystallize (like the shape of quartz crystals). Bi crystals are the only ones with this distinct shape, IIRC.