經過石灰質水滴長年累月滴落、硬化形成的天然石材。 形態與質感獨特，常用於裝飾或特殊工藝材料，但人工加工較為困難。主要產於經歷漫長歲月的深邃洞穴。
A natural stone formed over countless years as limestone dripped down with water droplets and solidified. Its unique shape and texture make it valuable as a decorative item or special crafting material, though it is difficult to process artificially. Commonly formed deep within caves that have aged over long periods.