Gas developer Blue Energy (ASX: BLU) has successfully brought its Sapphire 5 and 6 lateral pilot wells back online after they were impacted by mechanical issues. Surface facility maintenance issues ...

The locality origin of natural-color blue sapphires from Kashmir can, in many cases, be positively identified. However, the field of origin determination is a very complex one – especially with the ...

The Princess of Wales did not wear her sapphire engagement ring today, which previously belonged to Princess Diana. Instead, the royal wore her "replacement" infinity ring, which is reported to ...

Blue sapphire and tourmaline are strongly dichroic uniaxial gems, while tanzanite (again, see figure 1) provides an example of a strongly trichroic biaxial stone. Not all uniaxial gems display visible ...

Since demantoids are so rare, they are usually only seen in antique jewelry. While sapphires come in a wide range of colors, when iron is present in a stone, it causes the color to be green or ...