BLUE AMBER

Blue Amber 

When natural light strikes Blue Amber on a white surface, the light particles pass right through, and then are refracted off the white surface. The result is the slight blue hue of Blue Amber. When the same natural light particles strike the Amber on a black surface, the light particles don't refract off the black surface, thus refracting off the actual Amber. Hydrocarbons in the Blue Amber turn the sun's ultraviolet light into blue light particles, resulting in the glow of Blue Amber.^[6]
This effect is only possible in some specimens of Dominican amber^[7] category, in some Mexican ambers from Chiapas ^[8] and some ambers from Indonesia.^[2] Any other Amber (such as Baltic Amber) will not display this phenomenon, because its original resin is not from the Hymenaea protera tree.^[9]
The polycyclic aromatic hydrocarbons, produced through a thermal polymerization process initiated via irradiation, relax to their ground state, absorb high-energy ultraviolet photons and re-emit them as lower-energy visible photons, according to the absorbance curve of the particular fluorophore.
Recently, optical absorption, fluorescence and time-resolved fluorescence measurements in Dominican ambers have been reported. These studies show that the "blue" variety reveals an intense fluorescence emission in the visible wavelength region, between 430 and 530 nm, with spectral features which are typical of aromatic hydrocarbons. On the contrary, the Dominican "red" and "yellow" amber varieties have a much weaker and featureless emission, although still do have a certain fluorescence. The process in Blue Amber is surprisingly similar to phosphor.
Although there are several theories about the origin of Dominican blue amber, there is a great probability that it owes its existence to elements such as anthracene as a result of 'incomplete combustion' due to forest fires among the extinct species Hymenaea protera trees about 25 to 40 million years ago.^[10][11]

RAW BLUE AMBER

Vittorio Bellani and Enrico Giulotto at the University of Pavia, Italy studied several amber specimens by means of optical absorption, fluorescence spectroscopy, and time-resolved fluorescence measurements. The resulting spectral analysis revealed that the spectra of the hydrocarbons are very similar in shape to those of diluted solutions of anthracene, perylene, and tetracene, and suggest that the fluorescent hydrocarbon responsible for the blueness is most likely perylene


 当自然光照射的白色表面蓝琥珀，光粒子通过的权利，通过，然后被折射出去的白色表面。其结果是轻微的蓝色色调的蓝琥珀。当同样的自然光粒子撞击一个黑色的表面上，琥珀色的光粒子不折射黑色表面，从而折射实际琥珀。蓝琥珀的碳氢化合物将阳光中的紫外线光变成蓝色的光粒子，产生辉光蓝琥珀。[6]

这种效果是只可能在一些标本多米尼加琥珀[7]类别，在一些墨西哥恰帕斯州[8]和来自印尼的一些琥珀[2]任何其他琥珀（如波罗的海琥珀）将不显示此现象，因为琥珀原文的树脂没有从Hymenaea protera树。[9]

通过热聚合过程开始通过照射产生的多环芳香烃，放松到其基态，吸收高能量的紫外线光子，并重新发射它们作为低能量的可见光子，根据特定的荧光基团的吸光度曲线。

最近，多米尼加琥珀中的光吸收，荧光和时间分辨荧光测量已有报道。这些研究表明，“蓝色”的各种显示一个强烈的荧光发射在可见光波长区域中，在430和530 nm之间，这是典型的芳族烃的光谱特征。相反，多米尼加的“红色”和“黄色”琥珀品种有一个更弱，无特色的排放，虽然仍然有一定的荧光。蓝琥珀的过程中荧光粉是惊人的相似。

虽然多米尼加蓝琥珀的起源有几种说法，有一个伟大的概率，它欠它的存在的元素，如蒽作为结果的“不完全燃烧”，由于之间的灭绝的物种Hymenaea protera的的树木约25至森林火灾4000万年前