Crystal Flesh

Hold an appropriate gemstone in your hand (lapis, obsidian, tiger's eye). Target up to seven creatures you can see, each must make a Constitution saving throw. On a failed save, targets take 1d10 force damage and flesh somewhere on their body is transmuted into a geode-like structure containing 1d4 1/8" diameter gemstones of the type you are holding. These gems can be easily removed by hand. On a successful save, the spell does half damage and the geode produces double the gemstones.

For each level above 4th, you can target one less person, damage increased by 1d10, you add +1 to the number of gemstones created and the maximum value of the material component gemstone is raised.

At 5th level, the value limit per 1/8" diameter of gemstone is raised from 10gp to 50gp, from 50gp to 100gp at 6th (amber, coral, jade, pearl), from 100gp to 500gp at 7th (black pearl, violet garnet, topaz), from 500gp to 1000gp at 8th (emerald, sapphire), and from 1000gp to 5000gp at 9th (diamond).