Under the microscope – ash of Eyjafjallajökull volcano – VII

24 04 2010
glass volcano volcanic ash Eyjafjallajökull Iceland eruption

Green glass shard that fell as volcanic ash on Sweden 15th-16th April from the eruption of Eyjafjallajökull. Scale is 25 microns. This particle was removed from a larger, 1mm ash particle and viewed with a Zeiss microscope without using crossed polarizers, like in the last post. The colour in this photo is entirely due to the presence of iron and other metals in the glass.





Shatter-petals-4

20 08 2009

Shatter-petals-4





Shatter-petal-burst-2.1

20 08 2009

Shatter-petal-burst-2





Shatter-burst-2

20 08 2009

Shatter-burst-2





Red-on-glass 2.1

20 08 2009

Red on glass-2b





Window-flowers-3

19 08 2009

window-flowers








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