Morphologies and Surface Features of Diamond Samples from Southern Thailand
Somruedee Sakkaravej, Thanapong Lhuaamporn, Pantaree Lomthong, Wilawan Atichat and Pornsawat Wathanakul
Padparadscha Sapphire & heat treatment
In 2018 the Padparadscha engagement ring of Princess Eugenie (Figure 1), the niece of the king, gave
Application of Fibre Optics Reflectance Spectroscopy (FORS) for the determination of mineral pigments in jasper
The identification of pigments is carried out routinely mostly by X-ray diffraction, FTIR and Raman