blue little thing....

2nd night at Perhentian Island, all of us went to beach to see a blue little thing.... We call it as 'blue sand'.. It just show up at beach.. When the is comes dark, it will shine in blue.. If scrub with leg in sand, it will become more clear.. We cant catch it, because it just shine a while and disappear.. The boatman told us that 'blue sand' is microorganisms.. He also never see the thing clearly..
After back, I find some information about 'blue sand'.. It have many kind.. To know more, please go to www.bioart.co.uk/lux/dino.html..

this is the 'blue sand' i mention about (in plastic bag).. So amazing right??