The small case of blue turquoise, for example, held 14 cut and polished stones of different sizes and from different countries, ranging from a pale tint to a deep ocean hue. Other cases contained ...

Passing through, I saw some bright blue objects under a shady tree, and I thought I had found some turquoise jewels, but no — it was wads of blue chewing gum! Actually, the color was pale sky ...

One of the most amazing sights in Antarctica is its stunning blue ice, rippling like a frozen sea. Patches of blue-hued ice emerge where wind and evaporation have scoured glaciers clean of snow.