Among the many treasures to be found on Michigan beaches, Leland Blue has quickly become one of the most beloved. The stone — which comes in brilliant shades of blue with a tumbled, pockmarked surface ...

In recent years, Leland Blue — the enchanting Michigan beach stone that actually is not a stone at all — has become one of the Great Lakes’ most sought-after rock-hunting riches. The byproduct of ...

The Azure Blue is one of two important blue diamonds being offered at Christie’s. The second is a 5.04-carat fancy vivid blue diamond Its estimate is $6.5 to $8.5 million ...

Microscopic analysis of an ancient stone found blue pigment, the oldest ever found in Europe. Wisher, et al (2025) Antiquity The seas of the Caribbean, Cookie Monster and the Facebook logo all have ...