CITRIC ACID CHEMICAL CRYSTALS MICROSCOPE IMAGE COASTER (C23)
A solution of citric acid was evaporated on a microscope slide to form crystals. By viewing these crystals using polarised light microscopy, amazing and interesting colours and patterns are seen. This is due to the crystals forming regular arrays and interfering with the light path to give the colours seen (no colours were changed using Photoshop).
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 £14orany six for £20 – 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).
Delivery charges for overseas orders are calculated in the shopping basket.
Orders are normally sent out within 2 working days.