常见一轴晶宝石矿物加工定向研究

Study of Some Uniaxial Minerals for Better Orientation of Faceting

要使非均质性透明宝石矿物的颜色更好地表现出来，沿光轴方向的加工定向是非常必要的。用几种分光光度计研究了一些一轴晶矿物平行和垂直于主光轴方向的吸收程度。主要测定了产于俄罗斯和美国的电气石、 天然和合成的红宝石、 蓝色绿柱石及磷灰石。对所研究的矿物均提出了最佳的加工定向方案。

For better manifestation of colours in anisotropic transparent stones the orientation of faceting along optical axes is necessary. Degree of absorption along and perpendicular to the main optical axis was studied for some uniaxial minerals, using several types of spectrophotometers. Tourmalines from Russian and American deposits, natural and synthetic rubies, blue beryls and apatites were measured. For all studied minerals the best orientation of faceting is recommended.