Common toxic and harmful mineral resources classification
Nature is a very wonderful world. It provides a rich source of resources for human survival. But it also brings factors that can't be brought to humanity. Some mineral resources are harmful. The mineral resources of nature can be divided into four categories: 1. Minerals are non-toxic or even essential; 2. Minerals are strongly toxic; 3. Minerals contain toxic elements but are generally non-toxic; 4. Minerals are radioactive minerals. First, minerals are non-toxic and even essential elements Minerals are non-toxic and even essential, but can cause fatal injuries under certain special conditions, including: potassium salt, diamond , asbestos , quartz . Second, the mineral itself is highly toxic Mineral itself strong toxicity, comprising: a red thallium ore, witherite, vitriol, arsenopyrite, orpiment, realgar, Chinese arsenic, arsine, cinnabar, galena, carnallite like. Third, minerals, containing toxic elements but generally non-toxic Minerals, but contain toxic elements themselves are generally non-toxic and may cause injury mainly in the smelting and use, including sphalerite, beryl, chrome iron ore, barite, fluorite, natural gold. Fourth, minerals are radioactive minerals For example: mineral resources such as lead. Consew Embroidery Machine,Semi Industrial Embroidery Machine,Sewing Machine T Shirt Printing,Used Industrial Embroidery Machine Ningbo World Wide Electric techonology CO.,Ltd , https://www.ningbomachine.com