CITRIC ACID BY POLARISED LIGHT MICROSCOPY KEYRING (K4)

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).

Silver coloured high quality metal keyrings with a colourful dye-sublimation printed picture of a microscope image on one side that gives a durable and scratch resistant finish.

Keyrings measure 42x25mm (measured without including ring).

Supplied in a presentation box with a label describing the image.

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.

Please note these keyrings are printed to order so will be despatched within 4 working days of order being received.