Mica Schist from Lochaber, Scotland rock thin section Coaster (C60) £4.00 Quantity: at £4.00 each Add To Basket A thin rock section of Mica Schist was viewed using crossed polarising filters. This is a metamorphic rock which shows two different types of mica with a background of quartz and feldspar. From Loch Eilt, Lochaber, Scotland. Part of the Moine Schists. 900 million years old, when the most advanced life was single celled algae in the ocean. 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. 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 coasters are printed to order so will be despatched within 4 working days of order being received.