This graphite crucible with a lid is designed for high-temperature melting and refining of precious metals, offering excellent resistance to thermal shock . Its sleek black surface and sturdy construction make it ideal for laboratory use or small-scale metal casting operations. The covered design ensuring purer results while maintaining consistent heat distribution. Ideal for gold, silver, and brass refining, this tool supports both professional and hobbyist needs in metallurgical experiments or crafting jewelry components. Features -Color:Black -Material:Graphite -Size:4.70X3.50X3.50cm/1.85X1.38X1.38in -Size:4.40X3.50X3.50cm/1.73X1.38X1.38in -Exceptional heat resistance: withstands extreme temperatures for melting precious metals like , ensuring stable performance in both lab and industrial settings - chemical stability: prevents unwanted reactions during metal refining, enhancing the purity and yield of your cast ingots with consistent results -Precision lid design: the carefully crafted lid improving operational safety and efficiency in laboratory or smallscale metallurgical work -Excellent thermal conductivity: accelerates heating processes to save time, boosting productivity and reducing experimental cycles significantly -Reusable and low maintenance: easy to clean and durable for repeated use, making it ideal for labs and smallscale refining operations over time Package list: 5 x Graphite Crucible 5 x Lid