-- Bronze (CuSn)
minetest.register_craftitem("sbz_chem:bronze_powder", {
    description = "Bronze Powder (CuSn)",
    inventory_image = "powder.png^[colorize:#CD7F32:100",  -- Bronze color
})

-- Brass (CuZn)
minetest.register_craftitem("sbz_chem:brass_powder", {
    description = "Brass Powder (CuZn)",
    inventory_image = "powder.png^[colorize:#B5A642:100",  -- Brass color
})

-- Invar (FeNi)
minetest.register_craftitem("sbz_chem:invar_powder", {
    description = "Invar Powder (FeNi)",
    inventory_image = "powder.png^[colorize:#808080:100",  -- Gray color
})

-- Titanium Alloy (TiAl)
minetest.register_craftitem("sbz_chem:titanium_alloy_powder", {
    description = "Titanium Alloy Powder (TiAl)",
    inventory_image = "powder.png^[colorize:#B0C4DE:100",  -- Light steel blue color
})

-- White Gold (AuNi)
minetest.register_craftitem("sbz_chem:white_gold_powder", {
    description = "White Gold Powder (AuNi)",
    inventory_image = "powder.png^[colorize:#E5E4E2:100",  -- Light silver color
})