A thin rock section of Eucrite was viewed using crossed polarising filters. This igneous rock is from the Ardnamurchan volcano and is a type of gabbro. Forms most of the rocks you can see today in the Ardnamurchan volcanic centre. Crystalised at depth, all the lavas etc have been eroded away. Contains olivine and flow aligned feldspar, minor pyroxene.
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.
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