"In 2010, Iceland Post issued three stamps to commemorate the eruption of Eyjafjallajokull volcano. All the stamps are silkscreen printed with very fine-grained trachyandesite ash which fell at Eyjafjallajokull in April. The trachyandesite magma has ca. 60% silica content and comes from a depth of 7 km with a temperature of more than 1100°C when it reaches the glacial ice."Stamp News rankar de isländska frimärkena med äkta vulkanaska från Eyjafjallajökull som 2010 års näst ovanligaste - läs mer här.
