0 is sea level Light Blue: Felerium (Ef3) Pink: M-ium (Mimmimimimiimmium) Dark Blue: Deepstone (Tr2Bl5) Green: Vien Yellow: Selopium Really Dark Grey: Ocolsis (Ul13Mi2Tr7) Dark (but lighter) gray: netherite (Nz4Au4) (Nz is Nezite)
THE Y PLACEMENT IS THE ONLY PART THAT THIS CHART SHOWS yes I calculated the netherite position, I used Google a lot but still. Using y31 as sea level, y 8 to 22 where netherite is found, convert all 3 measures to feet, subtracting that y31 converted to feet (101.68) and got ~-30 to ~-75