硅灰石的发光性

LUMINESCENCE OF WOLLASTONITE

紫外荧光分析和阴极射线发光分析表明,硅灰石的发光颜色与激活剂锰、猝灭剂铁的成分密切有关.由于两者含量不同显现不同颜色和亮度.硅灰石Mn^(2+)的辐射为500—700nm的宽谱带,峰位在565nm附近,峰位也受成分含量控制.铜陵、冯家山、小箕铺等地的硅灰石具较强的发光性,色纯艳.热发光分析表明,热发光峰的温度和数目能反映硅灰石的成因特点.硅灰石热发光峰通常出现255-280℃,240-255℃两个峰.

The ultraviolet fluorescence and cathodo-luminescence of wollastonite show that thc luminous colore is related to the components of manganese, iron. Manganese is a activer and iron is a quencher. The differential colore and brightness depend upon the content of the two components. The Mn^(2+) emission spectrum of wollastonitc is a 500-700nm broad band, the position of peak lies around 565nm, which is also controled by thc content of the components. The wollastonite from Tongling, Fengjiashan and Xiaoqipu have very strong luminescence and their colore are pure and gaudy. Thc thermolumincscence shows that the temperature and number of spectra can give more gensis information about wollastonite. The thermoluminescence of wollastonite has normally thc two peaks 255-280℃, 240-255℃.