Calcium carbonate occurs in the allomorphs calcite and aragonite .
碳酸钙存在于同质异晶的方解石和文石中。
Effect of magnetic field on the growth rate of aragonite .
磁场对文石成长速率之影响。
Changle city , fujian province aragonite frozen aquatic products factory .
福建省长乐市文石水产品冷冻厂。
They have also discovered that the shells of many organisms in the area are short of aragonite , a form of calcium carbonate that gives them strength , but whose formation acid discourages .
