碳硫硅钙石和钙矾石的晶体结构和形态极为相似,对其准确鉴别难度较大.本文采用化学方法合成出纯的钙矾石和碳硫硅钙石,并用XRD、EDS能谱、IR光谱和Raman光谱等微观测试手段对它们的结构进行表征,以探求碳硫硅钙石鉴定方法.研究结果表明,碳硫硅钙石和钙矾石的XRD图谱极为相似;碳硫硅钙石EDS能谱显示其主要含有S、Si和Ca等元素,而钙矾石则主要为S、Al和Ca等元素;碳硫硅钙石的IR光谱和Raman光谱分别在500cm-1处和658 cm-1处有特征吸收峰.研究发现,拉曼光谱是鉴别碳硫硅钙石存在的最有效方法.
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