993 gr Rough Polished Slim Indonesia Blue Amber 25x15x4 cm

Description

please Read
for now becuase situation we only can send use fast shipping DHL Express
special for blue amber and green amber
The greenish blue color observed in some amber from the Dominican Republic and Indonesia is actually fluorescence stimulated by ultraviolet (UV) light. A previous study described the color as iridescence over a yellow background, but it is in fact a surface fluorescence. Since this amber can be considered a long-wavelength pass filter with a half-pass wavelength at about 530 nm in its spectral transmittance, it does not transmit either UV or short-wave visible light. As this material completely absorbs light in the UV range and strongly absorbs light in the short-wave visible range, the stimulated blue color is confined exclusively to the surface. The amber from this study also showed the Usambara effect, the phenomenon in which color varies with the path length of light through a sample.
We take picture under sunlight, and normal light.
No trick Camera
Amber from West Sumatra-Indonesia
Indonesian Amber
Very Nice for fashion, home decor, gift and Healing
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Below is Certificate picture of our amber for sample, to proof that all amber we have are natural amber
we not give you the Certificate, it is just for proof that our amber are natural amber
also this is not a certificate of amber from this auction
We work it hand made, and all production from PT Amber Biru  Factory, Our Factory
we select it from rough, cutting, shaping, polishing, drilling, and selecting one by one. Many process
ALL OF OUR AMBER IS 100% REAL AMBER, Smell Oud, NOT A COPAL.