【摘要】 选取缅甸的白、淡粉紫和淡蓝紫3种颜色类型的翡翠样品,测试和分析了其元素和光吸收谱,并对其颜色成因进行了初步研究。结果表明,淡紫色翡翠样品含有少量的铁、锰和钛,而铬、钒、铜等元素的含量极低。除了Fe3+的吸收峰之外,淡粉紫色翡翠光谱中还存在峰值位于566nm处的宽吸收带,淡蓝紫色翡翠光谱中存在峰值位于534nm处的宽吸收带及长波侧625nm处的肩带,因此,淡粉紫色和淡蓝紫色翡翠分别由Mn3+和Ti3+离子致色。更多还原

【Abstract】 Three kinds of white,pale-pink purple and light-blue purple jadeite samples from Myanmar are selected for the test and analysis of elements and optical absorption spectra,and their color origins are preliminary studied.The results show that the lavender jadeite samples contain a small amount of iron,manganese and titanium,while the contents of chromium,vanadium and copper are extremely low.In addition to the absorption peak of Fe³⁺ ,the pale-pink purple jadeite has a broad absorption band peaking at 566 nm,and the light-blue purple jadeite has a broad absorption band peaking at 534 nm and a shoulder band at 625 nm on the long-wave side.It is inferred that the palepink purple and light-blue purple jadeite are mainly colored by Mn³⁺ and Ti3 +ions,respectively.更多还原