钟乳石,别名石钟乳、滴乳石,为碳酸盐类矿物方解石族,由碳酸钙和其他矿物质经上万年或几十万年时间的沉积形成。采收后,除去杂石,洗净,晒干,可入药。广西、云南是我国钟乳石资源最丰富的主要地区。钟乳石药材为钟乳状的集合体,多略呈圆柱形或圆锥形,长短粗细不一,表面白色、灰白色或棕黄色,粗糙,凹凸不平。体重,质硬,易砸碎,断面较平整,白色至浅灰白色,略带淡棕色,对光观察具闪星状的亮光,近中心常有一圆孔,圆孔周围多数具浅橙黄色同心环层,有的可见放射状纹理。无臭,味微咸。滴加稀盐酸则产生大量气泡。钟乳石饮片为不规则碎块。白色、灰 Stalactites, alias stone stalactites, titoudao, is a carbonate mineral calcite family, formed by the deposition of calcium carbonate and other minerals over thousands of years or hundreds of thousands of years. Harvest, remove miscellaneous stones, washed, dried, can be used as medicine. Guangxi, Yunnan is China’s most abundant stalactites major areas. Stalactites herbs for the collection of bell-shaped, mostly slightly cylindrical or conical, the length of different sizes, surface white, gray or brown, rough, rugged. Body weight, hard, easy to smash, the section is relatively flat, white to light gray-white, slightly light brown, with flash light star observation of light, often near the center of a round hole, round the majority of pale orange concentric rings Layer, some visible radial texture. Odorless, taste slightly salty. Dropping diluted hydrochloric acid produces a large number of bubbles. Stalactites Pieces are irregular fragments. White, gray