We stock high purity alumina laboratory ware including ceramic crucibles, ignition dishes, boats and lids. We can produce custom sizes and other standard ceramic materials on request. (zirconia, zircon, mullite, rare earths like yttria and hafnia, quartz, fused silica, porcelain) We provide refractory porous crucibles for superalloys and other metals melting, precious and semi-precious melting, glass melting, etc. Our standard range includes isostatically pressed or rammed Zirconia crucibles and a range of high alumina refractory grade crucibles with high performance characteristics. Our wide range of ceramic materials both standard and non-standard should fit your application. For more information, please visit http://www.earthwaterfire.com/crucibles.htm