Single Crystals & Allotropes Registry

Synthetic Diamond (HPHT / CVD)Pyrolytic Graphite (HOPG)Lonsdaleite (Hexagonal Diamond)Single-Crystal Sapphire (Corundum)Piezoelectric α-Quartz CrystalRutile (TiO₂)Calcite (Iceland Spar)Fluorite (Fluorspar)Spinel (MgAl₂O₄)Zircon (ZrSiO₄)Beryl (Emerald / Aquamarine)Olivine (Peridot)Pyrite (Fool's Gold)Muscovite (Muscovy Glass)Perovskite (CaTiO₃)