A piece of very thin paper tissue (actually Whatman lens cleaning tissue - used for cleaning microscope lenses without scratching) viewed by polarised light microscopy. The crystals that form the fibres due to their regular arrays interfere with the light path and 'twist' the light to give the colours shown.
90mm square coasters printed by dye sublimation to give a vibrant, high gloss, scratch resistant finish.
Supplied with a description on the back of the coaster.
Buyany four coasters for £16orany six for £22 – just order the 4 or 6 coaster listings and put the numbers of the coasters you want into the text box. Mix them up for variety or get a matching set – whichever you want.
Free UK delivery on orders over £10 (£1 delivery charge for orders below £10).
Orders are normally sent out within 2 working days.