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Zincohogbomite-2N2S: (Zn,Fe++)(2-2x)(Ti)xAl4O8 Corundum: Al2O3
Comments: Thin-Section (Plane Polarized Light) of a brown, twinned zincohögbomite-2N2S crystal with blue corundum. Location: Mikro-Lakka Emery deposit, Kerketeas Mt, Sámos Island, Aegean Islands Department, Greece. Scale: Picture size 1.1 mm. © Thomas Witzke / Abraxas-Verlag