# Corundum, Crystal Pure corundum with no impurities ## Attributes - Quality: 3* - AMP: 6 Tetracles/kg ## Alchemy - Catalyst: Elektron - Reagent: Lumen - Integrant: N/A ## Classifications - #Material - #Mineral - #Crystal --- # Alumina Pure corundum ground into powder. ## Attributes - Quality: 3* - AMP: 8 Tetracles/kg ## Alchemy - Catalyst: Elektron - Reagent: Lumen - Integrant: N/A ## Classifications - #Material - #Mineral - #Powder --- # Emery Corundum with major impurities, turning the gem black or grey. Can be ground to create **Black Sand**. ## Attributes - Quality: 2* - AMP: 4 Shillings/kg ## Alchemy - Catalyst: Geon - Reagent: N/A - Integrant: N/A ## Classifications - #Material - #Mineral - #Crystal --- # Black Sand A black abrasive material used to create sandpaper and nail filers. ## Attributes - Quality: 2* - AMP: 5 Shillings/kg ## Alchemy - Catalyst: Geon - Reagent: N/A - Integrant: N/A ## Classifications - #Material - #Mineral - #Powder